Announcements of Upcoming Meetings

Notice that this list is not meant to be all-inclusive, but concentrates on meetings of potential interest to X-ray, gamma-ray, cosmic-ray, and gravitational astrophysicists. The HEASARC also maintains a list of upcoming high-energy astrophysics summer schools, a list of on-line proceedings of high-energy astrophysics meetings, as well as a list of on-line proceedings of high-energy astrophysics summer schools.

Updates, corrections, and/or suggestions about meetings should be sent to the HEASARC Help Desk.

Other Sources of Information on Upcoming Meetings

List of International Astronomy meetings maintained by the Canadian Astronomy Data Center
Jet Propulsion Laboratory (JPL) Space Calendar

High Energy Astrophysics meetings

2021 April 16 (and ongoing) : The HEAD Frontier Seminar Series

2021 April 18 - 23: Growing Black Holes: Accretion and Mergers

2021 May 24 - 28: A high energy view of exoplanets and their environments

2021 June 14 - 18: Extragalactic jets on all scales - launching, propagation, termination

2021 Aug (dates TBA): Chandra Data Science Novel Methods in Computing and Statistics for X-ray Astronomy

2021 Sep 5 - 11: IWARA 2021

2021 Sep 5 - 10: Astrophysical Polarimetry in the Time-Domain Era

2021 Sep 6 - 9: A multi-wavelength view of galaxy clusters: Deriving masses in the era of wide-field surveys

2022 Jul 16 - 24: 44th Scientific Assembly of the Committee on Space Research (COSPAR) and Associated Events -- COSPAR 2022

Selected Astronomy-related Physics, Computational, Data Analysis, Software or Statistics meetings

2021 June 7 - 10:Statistical Challenges in Modern Astronomy VII

The HEAD Frontier Seminar Series

Meeting Dates: 2021 April 16 (and ongoing!) at 1PM (EDT)
Meeting Location: Virtual via Zoom

The HEAD Fontier Seminars are by Zoom, and all HEAD members receive e-mail with the Zoom meeting number. If you are not a HEAD member and would like to attend, please contact the HEAD Secretary: headsec[AT]aas[DOT]org . HEAD members are encouraged to invite their non-HEAD colleagues. Videos of talks can be viewed on the AAS/HEAD youtube channel, linked from the seminar website.

For April 16, the talks are:

For more information, please visit the seminar website

Growing Black Holes: Accretion and Mergers

Meeting Dates: 2021 April 18 - 23
Meeting Location: Kathmandu, Nepal
Registration and Abstract Deadline: 2020 Jan 1 [Will be updated]
Discounted Hotel Deadline: 2020 Mar 1 [Will be updated]

Growing Black Holes: Accretion and mergers, 18-23 April 2021, is the seventh in a series of astrophysical conferences held in Kathmandu (Nepal). The meeting will focus on various aspects on accretion onto black holes, mergers of compact objects forming black holes, and jets formed in those systems. Emission of those systems/events in electromagnetic radiation, gravitational waves and neutrinos will be also addressed.

This conference will be in memory of Sergio Colafrancesco. Sergio has been among the conference organizers for most of the previous conference editions. He was an internationally recognized scientist, expert in cosmology and astrophysics and a Nepal lover.

Main Topics:

  • Black holes of all masses
  • Compact object mergers at all scales (stellar mass & supermassive), EM and GW signatures
  • Physics of accretion, disc winds and jets -- Galactic systems, IMBHs, and AGN
  • Stellar tidal disruption events (TDEs)
  • Large-scale feedback: jets and outflows
  • Galaxy -- BH scaling relations
  • Collapsars: black hole formation and GRBs
  • Multimessenger astrophysics
  • Mission Highlights and upcoming missions
Conference Site:

The conference will be held at the five star Hotel Radisson in Kathmandu, Nepal. The hotel is close to the Royal Palace and within walking distance to the center of the city.

Conference Fee:

The conference fee will be 350 EUR (including lunches, coffee breaks, welcome reception and conference banquet, use of the hotel conference facilities and a sightseeing) if registered before the deadline of 2020.01.01. After that, late registration will only be possible, if any space is left. The fee then is 400 EUR. We strongly encourage early registration and flight booking. A reduced fee of 250 EUR is foreseen for Indian/SAARC scientists and a further reduced fee of 200 EUR is foreseen for students (PhD, master degrees).

Pre-conference school for local students:

A two-day school for local students (April 17-19), which introduces the conference topics, is planned.


There is the option of booking a few post-conference trips, including trekking in Nepal with Everest/Himalaya views, and a one-week excursion to Bhutan. These are not part of the conference, but are organized by external trekking agencies. Strict booking deadlines apply. More information is available here

Scientific Organizing Committee:

G. Beck (South Africa), K. Belczynski (Poland), M. Branchesi (Italy), M. Colpi (Italy), M. Elvis (US), A. Gopakumar (India), K. Holley-Bockelmann (US), A. Ingram (UK), S. Komossa (chair; Germany), J.-P. Lasota (France), R. Morganti (Netherlands), C. Mundell (UK), E. Palazzi (Italy), E. Pian (Italy), L. Piro (Italy), L. Rezzolla (Germany), G. Sivakoff (Canada), A. Tchekhovskoy (US), M. Trenti (Australia), D.R. Upadhyay (Tribhuvan Univ., Nepal), A. Veledina (Finland), A. Zdziarski (Poland), S.-N. Zhang (China) Local Organizing Committee S. Komossa (Bonn, Germany), E. Palazzi (INAF/OAS-Bologna, Italy), M. Trenti (Melbourne Univ., Australia), A. Zdziarski (chair, NCAC, Poland)

Contact nepal2020[AT]iasfbo[DOT]inaf[DOT]it

A high energy view of exoplanets and their environments

Meeting Dates: 2021 May 24 -28
Meeting Location: Virtual (hosted by the European Space Astronomy Centre, ESAC)
Registration Deadline: 2021 May 20
Poster abstract Deadline: 2021 April 1

This workshop will bring together scientists working on exoplanets and their environments in relation to observables in the high-energy band with XMM-Newton and Chandra. Topics such as exoplanetary atmospheres, stellar high-energy irradiation, exoplanet formation, and interactions between stars and exoplanets will be explored. The wealth of current and upcoming exoplanet discovery missions such as TESS, CHEOPS and PLATO, as well as the continuing bright future of high-energy observations with missions like eROSITA and Athena make this workshop a timely event.


  • Exoplanet atmospheres
  • Stellar magnetic activity
  • Star-planet interactions
  • Extreme environments of planets
  • Star and planet formation
  • Future missions

  • Costanza Argiroffi - University of Palermo, Italy
  • Mario Guarcello - Osservatorio Astronomico di Palermo, Italy
  • Yamila Miguel - University of Leiden, The Netherlands
  • James Owen - Imperial College London, United Kingdom
  • Katja Poppenhaeger (chair) - Leibniz Institute for Astrophysics Potsdam, Germany
  • Luisa Rebull - California Institute of Technology, Pasadena, USA
  • Jorge Sanz-Forcada - Centro de Astrobiología, Villanueva de la Cañada, Spain
  • Norbert Schartel (co-chair) - European Space Agency, Villanueva de la Cañada, Spain
  • Beate Stelzer - Universität Tübingen, Germany
  • Peter Wheatley - University of Warwick, United Kingdom
  • Scott Wolk - Center for Astrophysics | Harvard & Smithsonian, Cambridge, USA
  • Aline Vidotto - University of Dublin, Ireland
  • Philippe Zarka - Observatoire de Paris - CNRS, Meudon, France

  • Julián Alvarado-Gómez - Leibniz Institute for Astrophysics Potsdam, Germany
  • Vincent Bourrier - University of Geneva, Switzerland
  • Graziella Branduardi-Raymont - University College London, MSSL, Dorking, UK
  • Knicole Colon - Goddard Space Flight Center, Greenbelt, USA
  • Kevin France - University of Colorado Boulder, USA
  • Boris Gaensicke - University of Warwick, UK
  • Kate Isaak - European Space Agency, Noordwijk, the Netherlands
  • Colin Johnstone - University of Vienna, Austria
  • Laura Kreidberg - Max Planck Institute for Astronomy, Heidelberg, Germany
  • Daria Kubyshkina - University of Dublin, Ireland
  • Giuseppina Micela - INAF, Osservatorio Astronomico di Palermo, Italy
  • Ignazio Pillitteri - INAF, Osservatorio Astronomico di Palermo, Italy
  • Heike Rauer - Institute of Planetary Research & FU and TU Berlin, Germany
  • George Ricker - Massachusetts Institute of Technology, Cambridge, USA
  • Jan Robrade - Hamburger Sternwarte, Germany
  • Evgenya Shkolnik - Arizona State University, Tempe, USA
Please see the conference website or contact us at xmmws2021[AT]sciops[DOT]esa[DOT]int with any questions.

Extragalactic jets on all scales - launching, propagation, termination

Meeting Dates: 2021 June 14 - 18
Meeting Location: Virtual
Registration and Abstract Deadline: 2021 April 1

Energetic and collimated beams of plasma launched from the centre of galaxies have fascinated the community for a century. In spite of the advancement in observational and theoretical modelling techniques, many aspects regarding the detailed physics of extra-galactic jets remain not fully understood. This conference aims to push forward our understanding of extra-galactic jets bringing together experts from theory and observations.

The main focus shall be on the theoretical side. One major aim of this conference is to demonstrate recent advances in the multi-scale numerical modeling of jets and to discuss strategies for how to better constrain simulations with multi-wavelength and high-resolution observational data. Another focus shall be the universality of jet properties and understand what we can learn from other jets sources such as non-relativistic jets or GRBs.

The conference addresses the astrophysics across all scales of the jets from:

  • the launching scale that governs the jet energetics and matter content
  • the propagation scale involving magnetic dissipation, particle acceleration and non-thermal radiation, jet stability and variability
  • the termination scale that is essentially connected to IGM and ICM feedback and the FRI/FRII jet power
Present and future sensitive radio facilities, such as VLA, LOFAR, EHT, and SKA, together with those extending the coverage over a full multiwavelength range, will be crucial for unraveling the jet physics at all spatial scales. This conference should be a platform to discuss state-of-the-art astrophysical approaches which can successfully bridge between numerical simulations, theoretical models, and multi-wavelength/multi-messenger observations.

In particular we would appreciate contributions on the following topics:

  • Jet launching GR-MHD simulations
  • Jet stability and variability
  • Jet energetics : heating, dissipation, feedback
  • Emission and Polarization - observed and simulated
  • Particle Acceleration Mechanisms
  • Essential observational inputs for theory
  • Universality of jet properties
Please contact us at jets2021[at]mpia[dot]de with any questions.

Chandra Data Science Novel Methods in Computing and Statistics for X-ray Astronomy

Meeting Dates: 2021 mid-August (dates TBA)
Meeting Location: Virtual
Registration and Abstract Deadline: March 2021

With its ability to detect the characteristics of individual photons, high spatial and spectral resolution and its low-background, the Chandra X-ray Observatory provides unprecedented perspectives of the X-ray universe. In simplest terms, the event list for a single observation is a database of photons; typically with 100,000 rows of data but sometimes up to 50 million. Careful scrutiny, visualization, and comparison to physical models of the event list -- at the heart of Chandra science -- has many similarities to data science. The Chandra community has provided numerous tools and techniques that advance Chandra science. This year's CXC summer science workshop will highlight the science enabled by such contributions.

The scope of this workshop will cover a large range of science topics and the methods that enable them from landmark contributions (DS9, CIAO, XSPEC, etc.) to novel statistical techniques (Bayesian/Poisson statistical methods, machine-learning classification, etc.). We will invite contributions on timing, imaging, and spectroscopy methods applied to Chandra observations of stars, neutron stars, black holes, AGN, galaxy clusters or any other field of X-ray astronomy, in addition to contributions from science enhanced by multi-mission and multiwavelength studies.

The workshop will occur virtually mid-August 2021 (likely dates are 17th-19th and 24th-26th). We will aim to host ~6 days with 3 hours of topical programming per day, including 30 minutes of community building (virtual cafes). Programming will include invited (25-30 minutes), contributed (10-15 minutes), and lightning (3-5 min) speakers and focused panel discussions. Talks will focus on science, but self-organized tutorials outside of these sessions may be considered.

Please contact us at cxcworkshop[AT]cfa[DOT]harvard[DOT]edu with any questions.

Registration and Expression of Interest

Registration is free. However, real-time participation in a given Zoom session will be limited to the first 100 guests for a particular session. A live YouTube stream will be made available and monitored for questions to accommodate overflow participants.

All attendees are expected to abide by the code of conduct for Chandra X-ray Center events.

To register for the meeting and to indicate interest in presenting a talk, please complete the registration form. Full abstracts for selected talks will be requested at a later date.

IWARA2021 - 10th International Workshop on Astronomy and Relativistic Astrophysics

Meeting Dates: 2021 Sep 5 - 11
Meeting Location: Mexico City, Mexico

The event is the tenth in a series of meetings gathering scientists working on astroparticle physics, cosmology, gravitation, nuclear physics, and related fields. As in previous years, the IWARA2021 meeting sessions will consist of invited and contributed talks, poster sessions, and will cover recent developments in the following topics:

  • New phenomena and new states of matter in the Universe
  • General relativity, gravitation, cosmology
  • New directions for general relativity: past, present and future of general relativity
  • FRW cosmologies
  • Cosmic microwave background radiation
  • First stars, hypernovae, and faint supernovae in the early Universe
  • Quantum gravity and quantum cosmology
  • Gravity and the unification of fundamental interactions
  • Supersymmetry and Inflation
  • String theory
  • White dwarfs, neutron stars and pulsars
  • Black hole physics and astrophysics
  • Gamma-ray emission in the Universe
  • High energy cosmic rays
  • Gravitational waves
  • Dark energy and dark matter
  • Strange matter and strange stars
  • Antimatter in the Universe
  • High-energy cosmic neutrinos
  • Blazars
  • Quantum chromodynamics, nuclear and particle physics and new states of matter in the Universe. Heavy ion collisions and the formation of the quark-gluon plasma in heavy ion collisions and in the first instants of the Universe
  • Strong magnetic fields in the Universe, strong magnetic fields in compact stars and in galaxies, ultra-strong magnetic fields in neutron star mergers, quark stars and magnetars, strong magnetic fields and the cosmic microwave background
  • Laboratories, observatories, telescopes and other experimental and observational facilities that will define the future directions of astrophysics, astronomy, cosmology, nuclear and astroparticle physics as well as the future of physics at the energy frontiers, and topics related to these.

For more information, please visit the workshop website.

Astrophysical Polarimetry in the Time-Domain Era

Meeting Dates: 2021 Sep 6 - 9
Meeting Location: Politecnico di Milano, Italy
Registration and Abstract Deadline: TBD

Modern astrophysics is increasingly characterized by large surveys able to identify transient or highly variable sources belonging to many different categories: supernovae, gamma-ray bursts, x-ray binaries, gravitational wave counterparts, flaring stars, novae, tidal distruction events, blazar outbursts, and numerous transients of unknown nature.

Transient phenomena represent unique laboratories of unusual or even extreme physical conditions, often linking together multi-messenger observations. Among the many possible analysis tools, (time-resolved) polarimetry offers the possibility to derive information about geometry, including magnetic field orientation, and physical processes driving the evolution of these events not easily obtainable by other techniques. New observatories have opened up an unprecedented wavelength range for polarimetry, from radio to gamma-ray, providing new insights on the physical processes, and establishing polarimetry as a key capability to exploit the yield of large scale transient surveys.

This workshop aims at bringing together theoreticians, observers, and instrument scientists to review the current state of the art and to enable new collaborations to develop to address open questions that can be addressed via polarimetric studies.

For additional questions, please see the conference website.

A multi-wavelength view of galaxy clusters: Deriving masses in the era of wide-field surveys

Meeting Dates: 2021 Sep 6 - 9
Meeting Location: Virtual
Registration and Abstract Deadline: TBD

Powerful new galaxy surveys Euclid, The Dark Energy Survey, eROSITA and LSST offer outstanding potential for both cluster cosmology and galaxy evolution. With these wide-field surveys across a variety of wavelengths and redshifts, we are moving into an era where samples of hundreds of thousands of galaxy clusters will be available. While these large samples enable the reduction of statistical uncertainties in our measurements, developments in modelling both our observations and theoretical understanding of galaxy clusters is crucial to the success of these surveys. The aim of this meeting is to bring together observers and theorists to discuss recent results and future prospects for deriving cluster masses in light of current and upcoming wide-field surveys.


This will be a small-medium sized meeting with oral and poster contributions alongside discussion sessions covering the following themes:

Theme 1: observational measurements & progress on:

  • Galaxy cluster masses derived from galaxies
  • Galaxy cluster masses derived from gravitational lensing
  • Galaxy cluster masses derived from X-rays
  • Galaxy cluster masses derived from the Sunyaev-Zeldovich effect
  • Machine learning applications to galaxy cluster mass estimation techniques
  • (Subthemes are inclusive of multi-wavelength comparisons).
Theme 2: galaxy cluster detection & mass estimation in the context of upcoming surveys (e.g., Euclid, eROSITA, Vera C. Rubin Observatory, JWST, Simons Observatory, CMB-S4, Athena, Lynx).

Theme 3: a view from galaxy cluster simulations (dark matter-only, hydrodynamical, synthetic skies etc.).

Theme 4: statistical challenges in galaxy cluster cosmology.

For additional questions, please see the conference website.

44th Scientific Assembly of the Committee on Space Research (COSPAR) and Associated Events -- COSPAR 2022

Meeting Dates: 2022 July 16 - 24
Meeting Location: Athens, Greece
Registration and Abstract Deadline: mid-February 2022 Topics: Approximately 140 meetings covering the fields of COSPAR Scientific Commissions (SC) and Panels:
  • SC A: The Earth's Surface, Meteorology and Climate
  • SC B: The Earth-Moon System, Planets, and Small Bodies of the Solar System
  • SC C: The Upper Atmospheres of the Earth and Planets Including Reference Atmospheres
  • SC D: Space Plasmas in the Solar System, Including Planetary Magnetospheres
  • SC E: Research in Astrophysics from Space
  • SC F: Life Sciences as Related to Space
  • SC G: Materials Sciences in Space
  • SC H: Fundamental Physics in Space
  • Panel on Satellite Dynamics (PSD)
  • Panel on Scientific Ballooning (PSB)
  • Panel on Potentially Environmentally Detrimental Activities in Space (PEDAS)
  • Panel on Radiation Belt Environment Modelling (PRBEM)
  • Panel on Space Weather (PSW)
  • Panel on Planetary Protection (PPP)
  • Panel on Capacity Building (PCB)
  • Panel on Education (PE)
  • Panel on Exploration (PEX)
  • Panel on Interstellar Research (PIR)
  • Panel on Innovative Solutions (PoIS)
  • Task Group on Establishing a Constellation of Small Satellites (TGCSS)
  • Special events: interdisciplinary lectures, round table, etc.
Selected papers published in Advances in Space Research and Life Sciences in Space Research, fully refereed journals with no deadlines open to all submissions in relevant fields.

For additional questions, please see the conference website or contact: cospar[AT]cosparhq[DOT]cnes[DOT]fr

Other Selected Astronomy, Physics and Space Science meetings

American Astronomical Society meeting #238

Meeting Dates: 2021 June 7 - 9
Meeting Location: Virtual
Abstract deadline: 2021 May 7
Early registration deadline: 2021 May 21
Late registration deadline: 2021 June 3

Selected Astronomy-related Technology (e.g., Instrumentation) Meetings

International Astrophysical Consortium for High Energy Calibration (IACHEC) High-Energy mission calibration plenary talks

The IACHEC is hosting a series of High-Energy mission calibration related Plenary talks this months on:

  • APRIL 16 (11AM - 12PM EDT): Planning in-flight calibration for XRISM -- Eric Miller, MIT
  • APRIL 23 (11AM - 12PM EDT): First Results and Calibration of eRosita -- Konrad Dennerl, MPE
  • APRIL 30TH (11AM - 12PM EDT): Calibration of IXPE -- Wayne Baumgartner, MSFC and Fabio Muleri, INAF-IAPS
For abstracts and more information on how to join, please visit the meeting website.

International Astrophysical Consortium for High Energy Calibration (IACHEC) Virtual Spring Meeting

These three days will be dedicated to the working groups status, progress over the last year, and future plans. The meeting link below will become active a few hours before the start of each day. If you have questions, requests, or suggestions please email: meeting2020[AT]iachec[DOT]org or visit the meeting website.

Selected Astronomy-related Physics, Computational, Data Analysis, Software or Statistics Meetings

Statistical Challenges in Modern Astronomy VII

Meeting Dates: 2021 June 7 - 10
Meeting Location: Virtual
Early registration deadline: 2021 April 30
Poster Submission deadline: 2021 May 17

The use of advanced statistical and machine-learning methodology in astronomical research is growing exponentially. The Statistical Challenges in Modern Astronomy (SCMA) conference series has been the premier venue for astrostatisticians to gather since the 1990s. SCMA VII will be held virtually June 7 - 10, 2021, led by an international scientific organizing committee and hosted by the Penn State Center for Astrostatistics.

The SCMA conference is truly cross-disciplinary - presentations by invited scholars of astronomical sciences are accompanied by statistician commentaries (and vice versa). Themes include statistical modeling of astronomical phenomena, discovering hidden astronomical signals, and enhancing the roles of machine learning for astrophysical insights. The SCMA VII conference is being held at a critical moment in time, as astrostatistical efforts are thriving around the world with increasing impact on the broader research enterprise.

If you have questions, requests, or suggestions please visit the meeting website.

Selected Space Science-related Education and Public Outreach Meetings


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