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Related papers: The Structure of the Local Hot Bubble

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DXL (Diffuse X-ray emission from the Local Galaxy) is a sounding rocket mission designed to estimate the contribution of Solar Wind Charge eXchange (SWCX) to the Diffuse X-ray Background (DXB) and to help determine the properties of the…

The Diffuse X-rays from the Local galaxy (DXL) mission is an approved sounding rocket project with a first launch scheduled around December 2012. Its goal is to identify and separate the X-ray emission generated by solar wind charge…

We present here a combined analysis of four high spectral resolution observations of the Diffuse X-ray Background (DXRB), made using the University of Wisconsin-Madison/Goddard Space Flight Center X-ray Quantum Calorimeter (XQC) sounding…

The SRG/eROSITA All-Sky Surveys (eRASSs) combine the advantages of complete sky coverage and the energy resolution provided by the charge couple device and offer the most holistic and detailed view of the diffuse soft X-ray background…

The hot Local Bubble surrounding the solar neighborhood has been primarily studied through observations of its soft X-ray emission. The measurements were obtained by attributing all of the observed local soft X-rays to the bubble. However,…

Astrophysics · Physics 2009-06-23 Robin L. Shelton

We present calculations of the heliospheric SWCX emission spectra and their contributions in the ROSAT 1/4 keV band. We compare our results with the soft X-ray diffuse background (SXRB) emission detected in front of 378 identified shadowing…

Astrophysics · Physics 2011-02-11 D. Koutroumpa , R. Lallement , J. C. Raymond , V. Kharchenko

The major sources of the Soft X-ray Background (SXRB), besides distinct structures as supernovae and superbubbles (e.g. Loop I), are: (i) an absorbed extragalactic emission following a power law, (ii) an absorbed thermal component ~2x10^6…

Astrophysics · Physics 2009-11-13 Dimitra Koutroumpa , Rosine Lallement , Vasili Kharchenko , Alex Dalgarno

The Solar System is located within a low-density cavity, known as the Local Bubble, which appears to be filled with an X-ray emitting gas at a temperature of 10$^6$ K. Such conditions are too harsh for typical interstellar atoms and…

Astrophysics of Galaxies · Physics 2019-07-18 Amin Farhang , Jacco Th. van Loon , Habib G. Khosroshahi , Atefeh Javadi , Mandy Bailey

SRG/eROSITA is situated in a halo orbit around L2 where the highly variable solar wind charge exchange (SWCX) emission from Earth's magnetosheath is expected to be negligible. The soft X-ray foreground emissions from the local hot bubble…

Astrophysics of Galaxies · Physics 2023-06-12 Michael C. H. Yeung , Michael J. Freyberg , Gabriele Ponti , Konrad Dennerl , Manami Sasaki , Andy Strong

We studied the spectral signature of different components of the Diffuse X-ray Background (DXB), including Local Hot Bubble (LHB), Solar Wind Charge Exchange (SWCX), Galactic Halo, and typically unresolved point sources (galaxies and AGN),…

High Energy Astrophysical Phenomena · Physics 2023-05-25 Sicong Huang , Nico Cappelluti , Massimiliano Galeazzi , Anjali Gupta , Wenhao Liu , Eugenio Ursino , Tomykkutty J. Velliyedathu

We present the results of our investigation of the composition of the diffuse soft X-ray background emission (SXRB). Combining data of the Leiden/Dwingeloo HI Survey and the ROSAT All-Sky Survey (RASS), we set up a radiation transport…

Astrophysics · Physics 2007-05-23 M. Kappes , J. Pradas , J. Kerp

The Local Bubble (LB) is a hot, low-density cavity in the solar neighborhood, inside which the Solar System is currently located. The X-ray emission from such bubbles is strongly governed by the gas density, temperature, and the effects of…

High Energy Astrophysical Phenomena · Physics 2026-03-25 Philipp Girichidis , Erika Rea , Ralf S. Klessen , Michael C. H. Yeung , Efrem Maconi , Manami Sasaki , Michael Freyberg , Juan D. Soler

The Sun lies in the middle of an enormous cavity of a million degree gas, known as the Local Bubble. The Local Bubble is surrounded by a wall of denser neutral and ionized gas. The Local Bubble extends around 100 pc in the plane of Galaxy…

Astrophysics of Galaxies · Physics 2015-11-24 Jacco Th. van Loon , Amin Farhang , Atefeh Javadi , Mandy Bailey , Habib Khosroshahi

We have conducted a high signal-to-noise spectroscopic survey of 670 nearby early-type stars, to map Diffuse Interstellar Band (DIB) absorption in and around the Local Bubble. The project started with a Southern hemisphere survey conducted…

The model of a Local Hot Bubble has been widely accepted as providing a framework that can explain the ubiquitous presence of the soft X-ray background diffuse emission. We summarize the current knowledge on this local interstellar region,…

Astrophysics of Galaxies · Physics 2009-08-11 Barry Y. Welsh , Robin L. Shelton

Suzaku observed the molecular cloud MBM12 and a blank field less than 3 degrees away to separate the local and distant components of the diffuse soft X-ray background. Towards MBM12, a local (D< 275 pc) O VII emission line was clearly…

After discovery of the Fermi bubbles, giant structures observed in radio to X-rays have been discussed as possi- ble evidence of past activities in the Galactic Center (GC). We report here on the analysis of Suzaku data pointing around the…

Astrophysics of Galaxies · Physics 2018-08-08 Masahiro Akita , Jun Kataoka , Makoto Arimoto , Yoshiaki Sofue , Tomonori Totani , Yoshiyuki Inoue , Shinya Nakashima

The Sun is embedded in the so-called Local Bubble (LB) -- a cavity of hot plasma created by supernova explosions and surrounded by a shell of cold, dusty gas. Knowing the local distortion of the Galactic magnetic field associated with the…

Astrophysics of Galaxies · Physics 2020-04-08 V. Pelgrims , K. Ferrière , F. Boulanger , R. Lallement , L. Montier

This report summarizes the discussions in the Session 1 and Session 3 groups which met to discuss the questions: ``What Physical Processes Drive the Multiphase Interstellar Medium in the Local Bubble?'', and ``What are the Energy and…

Astrophysics · Physics 2008-06-13 Robin L. Shelton

It has not been shown so far whether the diffuse Galactic polarized emission at frequencies relevant for cosmic microwave background (CMB) studies originates from nearby or more distant regions of our Galaxy. This questions previous…

Astrophysics of Galaxies · Physics 2019-11-20 R. Skalidis , V. Pelgrims
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