#xrism — Public Fediverse posts

Il telescopio XRISM della NASA-JAXA rileva un vento caldo proveniente dalla galassia M82

#XRISM #chandra @astronomia

Per la prima volta, gli astronomi hanno misurato direttamente la velocità del gas surriscaldato che si solleva come una nube turbolenta da un “calderone” di intensa attività stellare nel cuore di M82, una galassia vicina che sta attraversando uno straordinario episodio di formazione stellare.

https://umbertogaetani.substack.com/p/il-telescopio-xrism-della-nasa-jaxa

Orbital motion detected in γ Cas Fe K emission lines: https://www.aanda.org/articles/aa/full_html/2026/03/aa58284-25/aa58284-25.html -> #XRISM solves famous star’s 50-year mystery: https://www.esa.int/Science_Exploration/Space_Science/XRISM_solves_famous_star_s_50-year_mystery

#ESA:
"
Flaring black hole whips up ultra-fast winds
"
"Leading X-ray space telescopes XMM-Newton and XRISM have spotted an extraordinary blast from a supermassive black hole. In a matter of hours, the gravitational monster whipped up powerful winds, flinging material out into space at eye-watering speeds of 60 000 km per second."

https://www.esa.int/Science_Exploration/Space_Science/XMM-Newton/Flaring_black_hole_whips_up_ultra-fast_winds

9.12.2025

#AGN #BlackHole #JAXA #NGC3783 #Röntenstrahlung #SchwarzesLoch #SMBH #SRON #Weltraumteleskop #XMM #XRISM #Xray

https://www.europesays.com/ie/225968/ Amendment 28: D.3 XRISM GO Final Text and Due Dates #astrophysics #Éire #IE #Ireland #NuSTAR(NuclearSpectroscopicTelescopeArray) #ResearchOpportunitiesInSpaceAndEarthSciences(ROSES) #Science #ScienceMissionDirectorate #XMMNewton(XRayMultiMirrorNewton) #XRISM(XRayImagingAndSpectroscopyMission)

https://www.europesays.com/ie/224357/ Astronomers Spot Extraordinary Blast from Supermassive Black Hole in NGC 3783 #BarredSpiralGalaxy #BlackHole #Éire #esa #Flare #GalacticWind #Galaxy #IE #Ireland #JAXA #nasa #NGC3783 #Outflow #Science #SpiralGalaxy #SupermassiveBlackHole #XRayBurst #XRayFlare #XRays #XMMNewton #XRISM

3I/ATLAS: Japan’s XRISM Probe Captures X-ray Emission From Exocomet Ahead Of Earth Flyby

https://web.brid.gy/r/https://in.mashable.com/science/103251/3iatlas-japans-xrism-probe-captures-x-ray-emission-from-exocomet-ahead-of-earth-flyby

Stratified wind from a super-Eddington X-ray binary is slower than expected: https://www.nature.com/articles/s41586-025-09495-w -> #XRISM uncovers a mystery in the cosmic winds of change: https://www.esa.int/Science_Exploration/Space_Science/XRISM_uncovers_a_mystery_in_the_cosmic_winds_of_change

I miss my high energy astro community here who would find thie final slide of a talk absolutely amusing... 😭😭😭

#astrodon #xrism #XraysAreTheBestRays

XRISM Satellite X-rays Milky Way’s Sulfur in Detail ✨

#Ast #Astrophysics #Space #Star #Universe #XRISM #Xray

⏩ 1 new picture and 1 new video from NASA (SVS) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=3&user=OptimusPrimeBot&ilshowall=1&offset=20250724125547

XRISM insights for interstellar Sulfur: https://arxiv.org/abs/2506.08751 -> NASA, JAXA #XRISM Satellite X-rays Milky Way’s Sulfur: https://science.nasa.gov/centers-and-facilities/goddard/nasa-jaxa-xrism-satellite-x-rays-milky-ways-sulfur/

The XRISM/Resolve view of the Fe K region of Cyg X-3: https://arxiv.org/abs/2411.00597 -> NASA, JAXA #XRISM Mission Looks Deeply Into ‘Hidden’ Stellar System: https://science.nasa.gov/missions/xrism/nasa-jaxa-xrism-mission-looks-deeply-into-hidden-stellar-system/

XRISM ziet ijzer in de accretieschijf van het zwarte gat in NGC 4151

NGC 4151 is een spiraalstelsel op een afstand van ongeveer 62 miljoen lichtjaar in de richting van het sterrenbeeld Jachthonden – Canes Venatici.

Deze artist impressie toont de mogelijke locaties van ijzer onthuld in XRISM’s röntgenspect

https://www.kuuke.nl/xrism-ziet-ijzer-in-de-accretieschijf-van-het-zwarte-gat-in-ngc-4151/

#accretieschijf #esa #ijzer #jaxa #nasa #NGC4151 #rntgenstraling #XRISM #ZwartGat

NASA Develops Tiny Yet Mighty 36-Pixel Sensor https://petapixel.com/2024/04/30/nasa-develops-tiny-yet-mighty-36-pixel-sensor/ #sensortechnology #imagesensor #Technology #astronomy #science #Space #xrism #News #jaxa #NASA #xray

One other major difference between XRISM and Chandra is their operating orbit.

Chandra uses an highly elliptical inclined orbit at 14,308 x 134,528 km altitude with a period of over 63 hours, while XRISM uses a circular inclined low-earth-orbit 550 km above earth, with a period of just 96 minutes, similar to Hubble.

It should be noted that the 550 km orbital space is buzzing with thousands of Starlink satellites.

https://chandra.harvard.edu/resources/ppt/illustrations/orbit/index.html
https://en.wikipedia.org/wiki/X-Ray_Imaging_and_Spectroscopy_Mission
#XRISM #Chandra
12/n

Here is a pic of the impressive looking XRISM Resolve instrument and its cryo-cooling encasing, being worked upon by engineers and technicians at NASA.

#XRISM
11/n

The XRISM calorimeter is maintained at a near-absolute-zero temp. of 50 mK using an elaborate set of concentric cooling shields, 2-stage sterling cryo-coolers (2ST), Joule-Thomson coolers (JT), Adiabatic Demagnetization Refrigerators (ADR) and 30 L liquid Helium (LHe).

Each shield and each stage lowers the temperature of the equipment for the next shield/stage.

The LHe will evaporate in 3 years, but ADR3 will still enable 50 mK.

https://ntrs.nasa.gov/api/citations/20190027533/downloads/20190027533.pdf
https://arxiv.org/pdf/2303.01642.pdf
#XRISM
10/n

X-ray micro-calorimeters measure the energy of X-rays by converting the energy of each photon into heat in an absorber which is attached to a highly sensitive thermometer.

An incident photon causes a tiny rise in temperature proportional to the photon energy, which decays over ~3.5 ms.

The data is analyzed to select pulses that are not contaminated by other pulses within a time window around it.

Near absolute zero temps are needed at the detector.

https://arxiv.org/pdf/2303.01642.pdf
#XRISM
9/n

The XRISM Resolve instrument, developed by NASA-Goddard, is an ultra-sensitive spectrometer, designed to measure the energy of incident X-ray photons at very high resolution.

X-ray energy range: 0.3–12 keV
Field of view: 3’x3’
Energy Resolution: <7 eV

By measuring the number of X-ray photons at various energy levels, a spectrogram can be created, as shown in post #3.

At the heart of Resolve is a 6x6 X-ray micro-calorimeter array kept at 0.050°K.

https://arxiv.org/pdf/2303.01642.pdf
#XRISM
8/n

#JAXA:
"
XRISM's First Light and Operational Update

The Japan Aerospace Exploration Agency (JAXA) has released the first-glimpses of X-ray observation data of the satellite's soft X-ray imager (Xtend *1) and soft X-ray spectrometer (Resolve *1) on board the X-ray Imaging and Spectroscopy Mission (XRISM)."

https://global.jaxa.jp/press/2024/01/20240105-1_e.html

5.1.2024

#Astronomie #Japan #Raumfahrt #Resolve #Weltraumteleskop #XRISM #Xtend

The XRISM XTend camera uses four 640x640 pixel CCDs.

The CCDs convert X-rays to electrons and then to electrical signals.

The design enables measurement of X-rays at different wavelengths without filters. Unlike optical light, where one electron is emitted per photon, a high energy X-ray photon causes emission of multiple electrons. A count of the electrons gives an estimate of the X-ray photon energy.

Energy band: 0.4-13 keV
FOV: 38'x38'
CCD temp: −120°C

https://arxiv.org/pdf/2303.07575.pdf
#XRISM
7/n

How does one focus X-rays in an X-ray telescope?

Parabolic mirrors and lenses don’t work since X-rays travel right thru them. But X-rays that strike a surface at a very shallow angle are reflected, as illustrated below.

That principle is used to create an X-ray telescope mirror, which consists of precisely ground gold-coated concentric thin conical shells. Each XRISM XMA uses 203 pairs of such mirror shells for double reflection.

https://imagine.gsfc.nasa.gov/observatories/technology/xray_telescopes1.html
https://www.xrism.jaxa.jp/en/technology/
#XRISM
6/n

Let’s take a deeper look at the design of the XRISM X-ray telescope.

It contains -
1. Two identical X-ray Mirror Assemblies (XMA) that focus X-rays on 2 instruments 5.6 m away.

2. The Xtend X-ray imager (CCD based camera). Energy band = 0.4-13 keV, Field of View (FOV) = 38'x38', energy resolution ≤250 eV.

3. The Resolve calorimeter-based X-ray spectrometer. Energy band = 0.3-12 keV, FOV = 3’x3’, energy resolution ≤7 eV.

https://www.xrism.jaxa.jp/en/technology/
https://heasarc.gsfc.nasa.gov/docs/xrism/
#XRISM
5/n

Here is a nice graphic showing various space (and some ground) telescopes and the primary spectrum they cover.

JAXA' s X-Ray Imaging and Spectroscopy Mission XRISM covers the X-ray spectrum from 0.1 to 3.1 nm. Chandra covers a similar range from 0.12 to 12 nm.

Radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays are all electromagnetic radiation (aka light) at different wavelengths and energy levels.

Original image source: https://imagine.gsfc.nasa.gov/science/toolbox/emspectrum_observatories1.html
#XRISM
4/n

The 2nd image, taken by XRISMs’ NASA-developed Resolve X-ray micro calorimeter, shows the ultra-hi-res X-ray spectrum of supernova remnant N132D in the Large Magellanic Cloud, a dwarf galaxy around 163,000 light-years away.

The spectrum vividly shows emission lines from various ions in the 1.8 -10 keV energy band (0.69 to 0.12 nm wavelengths), incl. silicon, sulfur, argon, calcium and iron. The background image of N132D was taken by the Xtend camera.

https://global.jaxa.jp/press/2024/01/20240105-1_e.html
#XRISM #Science
3/n

The 1st image, taken by XRISM’s Xtend X-ray CCD camera, is that of Galaxy cluster Abell 2319, a system where 2 clusters of galaxies are colliding about 770 million light-years away. The image is a superposition of optical and X-ray observations (shown in purple).

The purple hues signify the distribution of high-temp. plasma emitting X-rays.

The image shows Xtend’s wider field of view compared to Chandra and other X-ray telescopes.

https://global.jaxa.jp/press/2024/01/20240105-1_e.html
#XRISM
2/n

The X-ray telescope XRISM just released two high-quality images taken at the end of its commissioning process (aka first light).

Launched on Sep 7, 2023, the X-Ray Imaging and Spectroscopy Mission (XRISM, pronounced "crism") is an X-ray space telescope mission developed by JAXA in partnership with NASA and participation from ESA and other international orgs.

XRISM is similar to but more sensitive than the aging 24-year Chandra X-ray space telescope.

https://science.nasa.gov/missions/xrism/nasa-jaxa-xrism-mission-reveals-its-first-look-at-x-ray-cosmos/
#XRISM
1/n

@elizabethtasker @schnedan

Is this kind aperture door a new technology though? I think Hitomi had something very similar (but no luck there), yet various previous soft X-ray telescopes had/have some kind of aperture doors.

What makes the door on #XRISM new and untested technology? Serious question, maybe someone knows.

🚀 Lancement réussi cette nuit de X-ray Imaging and Spectroscopy Mission (#XRISM) et de Smart Lander for Investigating Moon (#SLIM) de la JAXA par une #H2A

The #H2A launch of #XRISM and #SLIM was a success: https://www.mhi.com/jp/news/230907.html - now we have a new X-ray satellite *and* the next lunar lander!

Webcast https://www.youtube.com/watch?v=Ej4ZMp4a2xw for the #H2A launch of the X-ray Imaging and Spectroscopy Mission #XRISM and the Smart Lander for Investigating Moon #SLIM now on, the launch is planned for 23:42 UTC.

🚀🌑🔭 Nouvelle date de lancement pour le télescope spatial #XRISM et le démonstrateur lunaire #SLIM de la JAXA : mercredi 6 septembre à 23h42 UTC sur #H2A

"Die „X-Ray Imaging and Spectroscopy Mission (XRISM)“ ist für den Start am 28. August 2023 bereit, um die energiereichsten Objekte und Ereignisse im Kosmos zu beobachten. So wird sie die Entwicklung des Universums und die Struktur der Raumzeit enthüllen. Eine Information der Europäischen Weltraumorganisation (ESA)."

https://www.raumfahrer.net/esa-die-naechste-grosse-x-ray-mission-startet-bald/

#Athena #Astronomie #ESA #Genf #HeatPipe #Japan #JAXA #Raumfahrt #Resolve #Röntgenastronomie #Röntgenstrahlung #SRON #Tanegashima #XARM #XRISM

25.8.2023

🚀 Le prochain décollage japonais se prépare pour la #H2A avec la mise en place des stickers sur la coiffe.
Le lanceur doit décoller le 26 août avec l'atterrisseur lunaire #SLIM et le #télescope spatial #XRISM.
Reconnaissez-vous #Astroboy ?
📷 Mitsubishi Group
#espace #exploration #spatial #lune #astronomie

Limits from the grave - resurrecting #Hitomi for decaying #DarkMatter and forecasting leading sensitivity for #XRISM: https://arxiv.org/abs/2305.17160 -> a "sensitive search from an analysis of archival Hitomi data towards blank sky locations, searching for DM decaying in our own Milky Way. The soon-to-be-launched XRISM satellite will have nearly identical soft-X-ray spectral capabilities to Hitomi; we project the full-mission sensitivity of XRISM for analyses of their future blank-sky data".

We are excited to announce our upcoming workshop on High-Resolution X-ray Spectroscopy, to be held in a hybrid format out of MIT in Cambridge, MA! Topics will include everything from Massive Stars to Clusters of Galaxies, with science results from #Chandra and from our friends at #XMM, #XRISM, and elsewhere.

Follow the conference webpage to stay up to date on Invited Speakers, Deadlines, and the eventual Program! https://cxc.harvard.edu/cdo/hrxs2023/index.html
#Astrodon #Astrophysics #XRayAstronomy #Astronomy

"#Röntgenanalyse ohne Zweifel – Vier Jahrzehnte währendes Rätsel kosmischer #Röntgenstrahlung gelöst"

"Ein internationales Team unter Leitung des Heidelberger #MPl für #Kernphysik hat mit einem hochpräzisen Experiment ein Jahrzehnte währendes Problem der #Astrophysik gelöst. Eine Pressemitteilung des Max-Planck-Instituts für Kernphysik.":

https://www.raumfahrer.net/roentgenanalyse-ohne-zweifel-vier-jahrzehnte-waehrendes-raetsel-kosmischer-roentgenstrahlung-geloest/

#Astronomie #Athena #XRISM #Eisen