XL-Calibur Non-refereed Publications
-
Development of Small-Pixel CZT Detectors for Future High-Resolution Hard X-ray Missions
Beilicke, M, NASA APRA Proposal, 155 (2011)
-
Design of a Hard X-ray Polarimeter: X-Calibur
Guo, Q et al., arXiv, 1101, 0595 (2011)
-
The Hard X-ray Polarimeter X-Calibur - Design and Tests
Beilicke, M et al., arXiv, 1109, 6850 (2011)
-
News and Views: Big mirror cast; X-Calibur afloat; Harpoon that comet!
A&G, 53, 0112 (2012)
-
The hard X-ray polarimeter X-Calibur
Beilicke, M et al., High Energy Gamma-Ray Astronomy: 5th International Meeting on High Energy Gamma-Ray Astronomy, 805 (2012)
-
Exploring the Hard X-ray Polarization of Southern Hemisphere X-ray Sources with a Long Duration Balloon Flight of X-Calibur
Krawczynski, H, NASA APRA Proposal, 119 (2012)
-
Theoretical Motivations for Polarization Studies in X-ray Astronomy & the Status of X-Calibur
Cowsik, R, 39th COSPAR Scientific Assembly, 373 (2012)
-
Status and Performance of the Hard X-Ray Polarimeter X-Calibur
Kislat, F et al., AAS, 221, 32802 (2013)
-
Observations of Accreting Black Holes in X-ray binaries with the X-Calibur Hard X-ray Polarimeter
Guo, Q et al., AAS, 221, 42104 (2013)
-
The Hard X-ray Polarimeter X-Calibur - Astrophysical Motivation and Performance
Beilicke, M et al., HEAD, 13, 12317 (2013)
-
Simulation and Laboratory results of the Hard X-ray Polarimeter: X-Calibur
Guo, Q et al., AAS, 223, 20205 (2014)
-
The hard X-ray polarimeter X-Calibur
Beilicke, M, HEAD, 14, 10406 (2014)
-
Blazar Observations with the Space-Borne X-Calibur X-Ray Polarimeter
Guo, Q et al., HEAD, 14, 10620 (2014)
-
Tests of General Relativity in the Strong Gravity Regime With the Space-Borne X-Calibur X-ray Polarimeter
Hoormann, J et al., HEAD, 14, 11613 (2014)
-
The Study of Highly Magnetized Neutron Stars with X-ray Polarimetry Observations
Krawczynski, H, 40th COSPAR Scientific Assembly, 1645 (2014)
-
Design and Tests of the Hard X-ray Polarimeter X-Calibur
Beilicke, M et al., Multifrequency Behaviour of High Energy Cosmic Sources, 293 (2014)
-
Systematic and Performance Tests of the Hard X-ray Polarimeter X-Calibur
Endsley, R et al., AAS, 225, 33715 (2015)
-
Status of the Balloon-Borne X-ray Polarimetry Mission X-Calibur
Krawczynski, H et al., HEAD, 15, 11620 (2016)
-
Exploring the Hard X-ray Polarization of Southern Hemisphere X-Ray Sources with a Long-Duration Balloon Flight of X-Calibur
Krawczynski, H, NASA APRA Proposal, 68 (2016)
-
X-Ray Polarimetry with X-Calibur and PolSTAR
Krawczynski, E, Frontier Research in Astrophysics II (FRAPWS2016), 80 (2016)
-
XL-Calibur: Plans for a Next-Generation Hard X-ray Polarimeter
Abarr, Q, AAS, 234, 11601 (2019)
-
Results From the Antarctic Balloon Flight of the Hard X-ray Polarimeter X-Calibur
Kislat, F et al., AAS, 234, 21508 (2019)
-
Study of the Systematic Errors of the Polarization Fraction and Angle Measurements with the X-Calibur Hard X-ray Polarimetry Mission
Abarr, Q et al., HEAD, 17, 10976 (2019)
-
Performance of the X-Calibur Hard X-ray Polarimetry Mission During the 2018-2019 Long Duration Balloon Flight
Kislat, F et al., HEAD, 17, 10978 (2019)
-
The Next-Generation Balloon-Borne Hard X-ray Polarimeter XL-Calibur
Kislat, F, HEAD, 17, 10979 (2019)
-
Swift and NICER observations of the X-ray binary GX 301-2 during the X-Calibur balloon campaign in December 2018.
Errando, M et al., HEAD, 17, 11108 (2019)
-
A long, broadband X-ray study of Vela X-1 and its environment
Fuerst, F et al., HEAD, 17, 11258 (2019)
-
Results from the Observations of the Accreting X-Ray Pulsar GX 301-2 with the X-Calibur Hard X-ray Polarimetry Mission
Krawczynski, H et al., HEAD, 17, 40106 (2019)
-
Observing Neutron Stars and Black Holes with the Hard X-ray Polarimeter XL-Calibur
Lisalda, L et al., AAS, 235, 43708 (2020)
-
Evaluating the Calibration of SN Ia Anchor Datasets with a Bayesian Hierarchical Model
Currie, M et al., arXiv, 2007, 02458 (2020)
-
Using Polarization Spectra as a Measure of Disk Thickness in Black Hole Systems
West, A & Krawczynski, H, AAS, 237, 40403 (2021)
-
Measuring Black Hole Spins and Constraining the Shapes and Locations of the Coronas of Stellar Mass Accreting Black Holes with the Upcoming IXPE and XL-Calibur X-ray Polarization Missions
Krawczynski, H, AAS, 237, 40404 (2021)
-
Implementing and investigating the numerical accuracy of the exact Compton scattering in the x-ray reflection from the black hole accretion disk
Hossen, M et al., AAS, 237, 40408 (2021)
-
Design and Performance of the Next-Generation Hard X-Ray Polarimeter XL-Calibur
Lisalda, L & XL-Calibur Collaboration, AAS, 237, 43501 (2021)
-
XL-Calibur, the next-generation balloon-borne hard X-ray polarimeter
Takahashi, H et al., 43rd COSPAR Scientific Assembly. Held 28 January - 4 February, 1665 (2021)
-
Probing magnetar magnetospheres and fundamental QED physics via X-ray polarimetry
Baring, M et al., 43rd COSPAR Scientific Assembly. Held 28 January - 4 February, 1667 (2021)
-
Hard X-ray polarimetry in the stratosphere
Takahashi, H & Pearce, M, 43rd COSPAR Scientific Assembly. Held 28 January - 4 February, 2304 (2021)
-
Performance of the X-Calibur Hard X-Ray Polarimetry Mission during its 2018/19 Long-Duration Balloon Flight
Abarr, Q et al., arXiv, 2204, 09761 (2022)
-
The Next-Generation Hard X-ray Polarimeter XL-Calibur
Kislat, F et al., HEAD, 19, 20402 (2022)
Latest News
Jul 2024
The XL-Calibur balloon from NASA was successfully
launched at 05:04 local time on the 9th of July from Esrange Space Center (Sweden).
The flight is expected to last 4-5 days and it is possible
to follow its journey across the Atlantic
before landing in northern Canada.
Oct 2023
New XL-Calibur launch window
The new XL-Calibur launch window from Kiruna, Sweden, is set from May 7 to July 15 2024.
Oct 2022
Update on the XL-Calibur Jul 2022 flight
the 6-day long flight had to contend with an accidental drop of
the entire flight ballast at one side of the gondola, leading to 3.5 days of recovery operations
without science observations. Furthermore, a mirror alignment error prevented the observations of
the X-ray targets in the remaining time.
12 Jul 2022
Successful XL-CALIBUR launch
XL-CALIBUR was launched in the early morning hours of 12 July 2022
(local time) from Esrange under excellent launch conditions. The balloon carried the
payload to 130,000 feet altitude until the mission was terminated
over northern Canada on July 18, 2022.
30 Jun 2022
XL-CALIBUR launch attempt #2
XL-CALIBUR planned launch early 1 July 2022
scrubbed due to wind conditions. Next
planned launch attempt 2 July 2022
(early morning local time)
24 Jun 2022
XL-CALIBUR launch scrubbed
The payload was rigged for flight, but
weather conditions prevented the
planned launch.
|