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[Date Prev][Date Next][Thread Prev][Thread Next][Search] [Main Index] [Thread Index] [HEASARC Archives] GSFC XMM-Newton GOF Status Report #401: XMM-NEWTON NEWS #254
News #254, 27 April 2022
CONTENTS
XMM-Newton Users' Group Meeting #23: Invitation from the UG Chair
EPIC effective area update
Announcement of opportunity for XRISM Guest Scientists
NEWS
XMM-Newton Users' Group Meeting #23: Invitation from the UG Chair
The XMM-Newton Users' Group will be holding its yearly meeting this coming May
16th and 17th.
As is usual, the UG welcomes all comments and suggestions on any relevant
aspect of XMM-Newton operations and future direction.
You may send these either directly to me, or if you prefer to any member of the
UG, before May 6th.
Rudy Wijnands, UG-Chair
The agenda for UG Meeting #23 and contact information of the UG chair and all
the other UG members are available at
https://gcc02.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.cosmos.esa.int%2Fweb%2Fxmm-newton%2Fusers-group%2F&data=05%7C01%7Cxmmnews%40lists.nasa.gov%7C14c3704c58144ba8167808da284b6f4b%7C7005d45845be48ae8140d43da96dd17b%7C0%7C0%7C637866601704234982%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=we5j66OiBIOikPdFaBjowV1YEZUdAemfZExxXJc3k8Q%3D&reserved=0
EPIC effective area update
An update to the EPIC effective area is now available, which improves the
agreement of spectral shapes between XMM-Newton EPIC and NuSTAR. Based on
NuSTAR's stray-light observations of the Crab and corresponding calibration
update of NuSTAR, the XMM-Newton EPIC effective area is changed by up to 8%
above 3 keV. This update removes significant residuals in the 3-12 keV range
between simultaneous fits of NuSTAR and XMM-Newton EPIC data.
This change can be activated in SAS version 20.0 (released in November 2021) or
later, setting the arfgen keyword "applyabsfluxcorr=yes", and is published in
CCF XRT3_XAREAEF_0014.CCF. This option is not activated by default to allow
scientists to test them on a large variety of sources and provide feedback to
the SOC. The update does not correct for energy-independent absolute scaling of
one instrument to the other, hence it is advised to allow the spectral
normalisations between the instruments to be adjustable.
This update is based on the EPIC-pn data, but can also be applied to EPIC-MOS.
The agreement between MOS and pn can be further improved by setting
"applyxcaladjustment=yes" in arfgen.
More details on the correction procedure and changes can be found in the
associated CCF Release Note, as well as in the accompanying Technical Note.
We encourage all scientists using XMM-Newton to apply and test these changes
and provide feedback to the XMM-Newton SOC via the Helpdesk. Feedback may
include whether fit residuals got smaller and the values of the different
normalisation factors per instrument.
Announcement of opportunity for XRISM Guest Scientists
ESA solicits the participation of the scientific community of ESA Member States
in the role of Guest Scientists for the XRISM mission. Through the appointment
of the XRISM Guest Scientists (XGS), ESA aims at involving a scientific
community as wide and diverse as possible in the exploitation of the data of
the Performance Verification Phase of the XRISM mission.
XGSs are expected to enhance the scientific return of the XRISM Performance
Verification observations by bringing unique expertise that includes, but is
not limited to: complementary data on the target from other X-ray observatories
or other wavebands, substantial theoretical insight, or specialized data
analysis techniques.
Detailed information can be found at
https://gcc02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.cosmos.esa.int%2Fweb%2Fxrism-xgs-2022%2F&data=05%7C01%7Cxmmnews%40lists.nasa.gov%7C14c3704c58144ba8167808da284b6f4b%7C7005d45845be48ae8140d43da96dd17b%7C0%7C0%7C637866601704234982%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=pp2Z4ZbJE3M1PT8h6aVbBXRsEXVIenaq8sGfSL9kCl4%3D&reserved=0
XMM-Newton Science Operations Centre at
ESA???s European Space Astronomy Centre,
Villanueva de la Cañada, Madrid, Spain
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