Le mécanisme d'émission X des jets des trous noirs résolu ? - Observatoire astronomique de Strasbourg Images composites de l’amas de Persée vu par Chandra et IXPE. X-ray: (Chandra) NASA/CXC/SAO, (IXPE) NASA/MSFC; Image Processing: NASA/CXC/SAO/N. Wolk and K. Arcand La mission IXPE a observé l’amas de ...

Deux articles récents sur l'amas de Persée, observé par #Chandra et #IXPE, auxquels a contribué Frédéric Marin de l'Observatoire astronomique de Strasbourg, viennent éclaircir le mécanisme d'émission X des jets présents autour des trous noirs.

astro.unistra.fr/fr/2025/12/2...

NASA’s IXPE Measures White Dwarf Star for First Time By Michael Allen For the first time, scientists have used NASA’s IXPE (Imaging X-ray Polarization Explorer) to study a white dwarf star. ...

#Astrophysics #IXPE #(Imaging #X-ray #Polarimetry #Explorer) #Marshall […]

[Original post on nasa.gov]

NASA’s IXPE Measures White Dwarf Star for First Time By Michael Allen For the first time, scientists have used NASA’s IXPE (Imaging X-ray Polarization Explorer) to study a white dwarf star. ...

#Astrophysics #IXPE #(Imaging #X-ray #Polarimetry #Explorer) #Marshall […]

[Original post on nasa.gov]

NASA’s IXPE Measures White Dwarf Star for First Time By Michael Allen For the first time, scientists have used NASA’s IXPE (Imaging X-ray Polarization Explorer) to study a white dwarf star. ...

#IXPE #(Imaging #X-ray #Polarimetry #Explorer) #Astrophysics #Marshall […]

[Original post on nasa.gov]

NASA’s IXPE Measures White Dwarf Star for First Time By Michael Allen For the first time, scientists have used NASA’s IXPE (Imaging X-ray Polarization Explorer) to study a white dwarf star. U...

#IXPE #(Imaging #X-ray #Polarimetry #Explorer) #Astrophysics #Marshall […]

[Original post on nasa.gov]

L’ammasso di Perseo. A sinistra: Imaging X-ray Polarimetry Explorer (IXPE); a destra: Osservatorio a raggi X Chandra.

La più lunga osservazione mai effettuata da IXPE risolve il mistero dei getti virali dei buchi neri

#chandra #IXPE @astronomia

Un team internazionale di astronomi che utilizza IXPE (Imaging X-ray Polarimetry Explorer) della NASA ha identificato l’origine dei […]

[Original post on mastodon.uno]

NASA IXPE’s Longest Observation Solves Black Hole Jets Mystery - NASA An international team of astronomers using NASA’s IXPE (Imaging X-ray Polarimetry Explorer) has identified the origin of X-rays in a supermassive black hole’s

#NASA #BlackHole #IXPE #XRays #astronomy #galaxy #Chandra #physics #science #realscience #actualscience www.nasa.gov/missions/ixp...

NASA IXPE’s Longest Observation Solves Black Hole Jets Mystery Written by Michael Allen An international team of astronomers using NASA’s IXPE (Imaging X-ray Polarimetry Explorer) has identifie...

#IXPE #(Imaging #X-ray #Polarimetry #Explorer) #Astrophysics […]

[Original post on nasa.gov]

NASA IXPE’s Longest Observation Solves Black Hole Jets Mystery Written by Michael Allen An international team of astronomers using NASA’s IXPE (Imaging X-ray Polarimetry Explorer) has identifie...

#IXPE #(Imaging #X-ray #Polarimetry #Explorer) #Astrophysics […]

[Original post on nasa.gov]

NASA IXPE’s Longest Observation Solves Black Hole Jets Mystery Written by Michael Allen An international team of astronomers using NASA’s IXPE (Imaging X-ray Polarimetry Explorer) has identifie...

#IXPE #(Imaging #X-ray #Polarimetry #Explorer) #Astrophysics […]

[Original post on nasa.gov]

NASA IXPE’s Longest Observation Solves Black Hole Jets Mystery Written by Michael Allen An international team of astronomers using NASA’s IXPE (Imaging X-ray Polarimetry Explorer) has identifie...

#IXPE #(Imaging #X-ray #Polarimetry #Explorer) #Astrophysics […]

[Original post on nasa.gov]

Home Decor Guideline: IXPE vs. EVA Underlayment

Which is better for underlayment: IXPE vs EVA?

The acoustic underlayment – plays an equally crucial role in comfort, noise reduction, and flooring longevity.

What distinguishes of IXPE and EVA?
Let’s explore:
zenn.dev/hrfloor/arti...

#home #ixpe #eva #flooring

The Pulsar Wind Revolution: What NASA’s IXPE Just Uncovered About PSR J1023+0038 Space is full of cosmic enigmas, but every so often, a discovery emerges that rewrites how we understand the wil...

#Astronomy #Black #holes #News #NASA #IXPE #| #PSR […]

[Original post on nasaspacenews.com]

Un team guidato dall’INAF, grazie ai dati del satellite #IXPE, ha trovato nuovi indizi che nei sistemi binari con #pulsar millisecondo, l’emissione nei raggi X è prodotta dal vento della pulsar e non dal disco di accrescimento.

www.astrospace.it/2025/07/16/n...

NASA’s IXPE Imager Reveals Mysteries of Rare Pulsar An international team of astronomers has uncovered new evidence to explain how pulsing remnants of exploded stars interact with surrounding ma...

#IXPE #(Imaging #X-ray #Polarimetry #Explorer) #Marshall […]

[Original post on nasa.gov]

NASA’s IXPE Imager Reveals Mysteries of Rare Pulsar An international team of astronomers has uncovered new evidence to explain how pulsing remnants of exploded stars interact with surrounding ma...

#IXPE #(Imaging #X-ray #Polarimetry #Explorer) #Marshall […]

[Original post on nasa.gov]

💫Los púlsares son estrellas de neutrones en rotación

🔭Un estudio coliderado por el @ice-csic.bsky.social desvela los misterios de un púlsar singular, que cuestiona los modelos tradicionales

🌌El hallazgo se ha realizado gracias al telescopio #IXPE de la #NASA

👉http://tiny.cc/6cfp001

The #IXPE telescope from #NASA unveils the mysteries of a unique #pulsar 💫

#IEEC researchers at @ice-csic.bsky.social co-lead this study, which challenges traditional models of neutron star behaviour in binary systems.

@csic.es @csiccat.bsky.social

👉 www.ieec.cat/en/nasas-ixp...

El telescopi #IXPE de la #NASA revela els misteris d'un singular #púlsar 💫

Investigadors de l' #IEEC a l' @ice-csic.bsky.social colideren aquest estudi, que qüestiona els models tradicionals de comportament de les estrelles de neutrons en sistemes binaris.

@csic.es

👉 www.ieec.cat/el-telescopi...

**Magnetars are neutron stars with ultra-strong magnetic fields that are about a quadrillion times greater than the magnetic field of Earth. These huge magnetic fields are thought to be produced when an rapidly rotating neutron star is formed by the collapse of the core of a massive star. Magnetarsemit bright X-rays and show erratic periods of activity, with the emission of bursts and flares which can release in just one second an amount of energy millions of times greater than our Sun emits in one year. Polarization measurements could provide information on their magnetic fields and surface properties. Astronomers using NASA’s Imaging X-ray Polarimetry Explorer (IXPE) focused on 1E 1841-045, a magnetar located in the supernova remnant (SNR) Kes 73 nearly 28,000 light-years from Earth. The results are presented in two papers published in the _Astrophysical Journal Letters_.** An artist’s impression of a magnetar. Image credit: NASA’s Goddard Space Flight Center / S. Wiessinger. Magnetars are a type of young neutron star — a stellar remnant formed when a massive star reaches the end of its life and collapses in on itself, leaving behind a dense core roughly the mass of the Sun, but squashed down to the size of a city. Neutron stars display some of the most extreme physics in the observable Universe and present unique opportunities to study conditions that would otherwise be impossible to replicate in a laboratory on Earth. The 1E 1841-045 magnetar was observed to be in a state of outburst by NASA’s Swift, Fermi, and NICER telescopes on August 21, 2024. A few times a year, the IXPE team approves requests to interrupt the telescope’s scheduled observations to instead focus on unique and unexpected celestial events. When 1E 1841-045 entered this brighter, active state, scientists decided to redirect IXPE to obtain the first-ever polarization measurements of a flaring magnetar. Magnetars have magnetic fields several thousand times stronger than most neutron stars and host the strongest magnetic fields of any known object in the Universe. Disturbances to their extreme magnetic fields can cause a magnetar to release up to a thousand times more X-ray energy than it normally would for several weeks. This enhanced state is called an outburst, but the mechanisms behind them are still not well understood. Through IXPE’s X-ray polarization measurements, scientists may be able to get closer to uncovering the mysteries of these events. Polarization carries information about the orientation and alignment of the emitted X-ray light waves; the higher the degree of polarization, the more the X-ray waves are traveling in sync, akin to a tightly choreographed dance performance. Examining the polarization characteristics of magnetars reveals clues about the energetic processes producing the observed photons as well as the direction and geometry of the magnetar magnetic fields. This illustration depicts IXPE’s measurements of X-ray polarization emitting from 1E 1841-045. Image credit: Michela Rigoselli / Italian National Institute of Astrophysics. The IXPE results, aided by observations from NASA’s NuSTAR and NICER telescopes, show that the X-ray emissions from 1E 1841-045 become more polarized at higher energy levels while still maintaining the same direction of propagation. A significant contribution to this high polarization degree comes from the hard X-ray tail of 1E 1841-045, an energetic magnetospheric component dominating the highest photon energies observed by IXPE. Hard X-rays refer to X-rays with shorter wavelengths and higher energies than soft X-rays. Although prevalent in magnetars, the mechanics driving the production of these high energy X-ray photons are still largely unknown. Several theories have been proposed to explain this emission, but now the high polarization associated with these hard X-rays provide further clues into their origin. “This unique observation will help advance the existing models aiming to explain magnetar hard X-ray emission by requiring them to account for this very high level of synchronization we see among these hard X-ray photons,” said Rachael Stewart, a Ph.D. student at George Washington University and lead author of the first paper. “This really showcases the power of polarization measurements in constraining physics in the extreme environments of magnetars.” “It will be interesting to observe 1E 1841-045 once it has returned to its quiescent, baseline state to follow the evolution of its polarimetric properties,” added Dr. Michela Rigoselli, an astronomer at the Italian National Institute of Astrophysics and lead author of the second paper. _____ Rachael Stewart _et al_. 2025. X-Ray Polarization of the Magnetar 1E 1841-045. _ApJL_ 985, L35; doi: 10.3847/2041-8213/adbffa Michela Rigoselli _et al_. 2025. IXPE Detection of Highly Polarized X-Rays from the Magnetar 1E 1841-045. _ApJL_ 985, L34; doi: 10.3847/2041-8213/adbffb

IXPE Measures X-ray Polarization of Magnetar Outburst Astronomers using NASA’s Imaging X-ray Po...


#Astronomy #1E #1841-045 #IXPE #Kes #73 #Magnetar #Magnetic #field #NASA #Neutron
Origin | Interest | Match

**Magnetars are neutron stars with ultra-strong magnetic fields that are about a quadrillion times greater than the magnetic field of Earth. These huge magnetic fields are thought to be produced when an rapidly rotating neutron star is formed by the collapse of the core of a massive star. Magnetarsemit bright X-rays and show erratic periods of activity, with the emission of bursts and flares which can release in just one second an amount of energy millions of times greater than our Sun emits in one year. Polarization measurements could provide information on their magnetic fields and surface properties. Astronomers using NASA’s Imaging X-ray Polarimetry Explorer (IXPE) focused on 1E 1841-045, a magnetar located in the supernova remnant (SNR) Kes 73 nearly 28,000 light-years from Earth. The results are presented in two papers published in the _Astrophysical Journal Letters_.** An artist’s impression of a magnetar. Image credit: NASA’s Goddard Space Flight Center / S. Wiessinger. Magnetars are a type of young neutron star — a stellar remnant formed when a massive star reaches the end of its life and collapses in on itself, leaving behind a dense core roughly the mass of the Sun, but squashed down to the size of a city. Neutron stars display some of the most extreme physics in the observable Universe and present unique opportunities to study conditions that would otherwise be impossible to replicate in a laboratory on Earth. The 1E 1841-045 magnetar was observed to be in a state of outburst by NASA’s Swift, Fermi, and NICER telescopes on August 21, 2024. A few times a year, the IXPE team approves requests to interrupt the telescope’s scheduled observations to instead focus on unique and unexpected celestial events. When 1E 1841-045 entered this brighter, active state, scientists decided to redirect IXPE to obtain the first-ever polarization measurements of a flaring magnetar. Magnetars have magnetic fields several thousand times stronger than most neutron stars and host the strongest magnetic fields of any known object in the Universe. Disturbances to their extreme magnetic fields can cause a magnetar to release up to a thousand times more X-ray energy than it normally would for several weeks. This enhanced state is called an outburst, but the mechanisms behind them are still not well understood. Through IXPE’s X-ray polarization measurements, scientists may be able to get closer to uncovering the mysteries of these events. Polarization carries information about the orientation and alignment of the emitted X-ray light waves; the higher the degree of polarization, the more the X-ray waves are traveling in sync, akin to a tightly choreographed dance performance. Examining the polarization characteristics of magnetars reveals clues about the energetic processes producing the observed photons as well as the direction and geometry of the magnetar magnetic fields. This illustration depicts IXPE’s measurements of X-ray polarization emitting from 1E 1841-045. Image credit: Michela Rigoselli / Italian National Institute of Astrophysics. The IXPE results, aided by observations from NASA’s NuSTAR and NICER telescopes, show that the X-ray emissions from 1E 1841-045 become more polarized at higher energy levels while still maintaining the same direction of propagation. A significant contribution to this high polarization degree comes from the hard X-ray tail of 1E 1841-045, an energetic magnetospheric component dominating the highest photon energies observed by IXPE. Hard X-rays refer to X-rays with shorter wavelengths and higher energies than soft X-rays. Although prevalent in magnetars, the mechanics driving the production of these high energy X-ray photons are still largely unknown. Several theories have been proposed to explain this emission, but now the high polarization associated with these hard X-rays provide further clues into their origin. “This unique observation will help advance the existing models aiming to explain magnetar hard X-ray emission by requiring them to account for this very high level of synchronization we see among these hard X-ray photons,” said Rachael Stewart, a Ph.D. student at George Washington University and lead author of the first paper. “This really showcases the power of polarization measurements in constraining physics in the extreme environments of magnetars.” “It will be interesting to observe 1E 1841-045 once it has returned to its quiescent, baseline state to follow the evolution of its polarimetric properties,” added Dr. Michela Rigoselli, an astronomer at the Italian National Institute of Astrophysics and lead author of the second paper. _____ Rachael Stewart _et al_. 2025. X-Ray Polarization of the Magnetar 1E 1841-045. _ApJL_ 985, L35; doi: 10.3847/2041-8213/adbffa Michela Rigoselli _et al_. 2025. IXPE Detection of Highly Polarized X-Rays from the Magnetar 1E 1841-045. _ApJL_ 985, L34; doi: 10.3847/2041-8213/adbffb

IXPE Measures X-ray Polarization of Magnetar Outburst Astronomers using NASA’s Imaging X-ray Po...


#Astronomy #1E #1841-045 #IXPE #Kes #73 #Magnetar #Magnetic #field #NASA #Neutron
Origin | Interest | Match