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相关论文: The young stellar population in M17 revealed by Ch…

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The population of low-luminosity (< 10^35 erg/s) X-Ray Binaries (XRBs) has been investigated in our Galaxy and M31 but not further. To address this problem, we have used data from the Chandra X-Ray Observatory and the Hubble Space Telescope…

宇宙学与河外天体物理 · 物理学 2015-06-12 N. Vulic , P. Barmby , S. C. Gallagher

Using the highest-resolution X-ray observation of the Trumpler 15 star cluster taken by the Chandra X-ray Observatory, we estimate the total size of its stellar population by comparing the X-ray luminosity function of the detected sources…

We obtained near infrared (NIR) imaging with the Subaru Telescope of the class 0 protostar candidates in the Orion Molecular Cloud-3, two of which were discovered to have X-ray emission by the Chandra X-ray Observatory. We found strong…

天体物理学 · 物理学 2009-11-07 M. Tsujimoto , K. Koyama , Y. Tsuboi , G. Chartas , M. Goto , N. Kobayashi , H. Terada , A. T. Tokunaga

We present new near-infrared spectroscopic observations of the outer edges of the young stellar cluster around the supermassive black hole at the Galactic center. The observations show a break in the surface-density profile of young stars…

星系天体物理 · 物理学 2015-08-06 Morten N. Støstad , Tuan Do , Norm Murray , Jessica R. Lu , Sylvana Yelda , Andrea M. Ghez

The main aim of this paper is to study both the Interstellar Medium (ISM) and the young stellar population in the three star-forming regions, namely IRAS 05137+3919, 05168+3634, and 19110+1045. The study of the ISM includes determination of…

星系天体物理 · 物理学 2024-04-09 Naira Azatyan

We present ultraviolet, optical, near-infrared, Spitzer mid-infrared, and radio images of 14 radio-selected objects in M 33. These objects are thought to represent the youngest phase of star cluster formation. We have detected the majority…

Multi-wavelength analysis of the young massive cluster VVV CL077 is presented for the first time. Our Chandra survey of this region enabled the detection of three X-ray emitting stellar members of the cluster, as well as a possible diffuse…

高能天体物理现象 · 物理学 2015-06-23 Arash Bodaghee , John A. Tomsick , Francesca Fornasini , Farid Rahoui , Franz E. Bauer

We present U, B, V, I broad-band, 6200A TiO medium-band and Halpha photometry of the Orion Nebula Cluster obtained with the WFI imager at the ESO/MPI 2.2 telescope. The nearly-simultaneous observations cover the entire ONC in a field of…

We have analyzed sensitive high spatial resolution archival radio continuum data at 1.3, 2.0, 3.6 and 6.0 cm as well as the H2O maser molecular line data obtained using the Very Large Array (VLA) in its hybrid AB configuration toward the…

天体物理学 · 物理学 2009-11-13 Luis A. Zapata , Silvia Leurini , Karl M. Menten , Peter Schilke , Rainer Rolffs , Carolin Hieret

We present results of a Chandra observation of a field in NGC 2264. The observations were taken with the ACIS-I camera with an exposure time of 48.1 ks. We present a catalog of 263 sources, which includes X-ray luminosity, optical and…

We present results of a 90 ksec Chandra X-ray observation of the young sigma Orionis cluster (age ~3 Myr) obtained with the High Energy Transmission Grating Spectrometer. We use the high resolution grating spectrum and moderate resolution…

天体物理学 · 物理学 2009-11-13 S. L. Skinner , K. R. Sokal , D. H. Cohen , M. Gagne , S. P. Owocki , R. D. Townsend

The central $2\times0.8$ deg$^2$ region of our Galaxy contains $\sim10,000$ X-ray point sources that were detected by a series of Chandra observations over the last two decades. However, the limited bandpass of Chandra below 8 keV hampered…

We present the results of the first X-ray all-sky survey (eRASS1) performed by the eROSITA instrument on board the Spectrum-Roentgen-Gamma (SRG) observatory of the Sco-Cen OB association. Bona fide Sco-Cen member stars are young and are…

太阳与恒星天体物理 · 物理学 2022-05-25 J. H. M. M. Schmitt , S. Czesla , S. Freund , J. Robrade , P. C. Schneider

We present a multi-wavelength study of the young stellar population in the Cygnus-X DR15 region. We studied young stars forming or recently formed at and around the tip of a prominent molecular pillar and an infrared dark cloud. Using a…

The mysterious high galactic latitude cometary globule CG12 has been observed with the ACIS detector on board the Chandra X-ray Observatory. We detect 128 X-ray sources; half are likely young stars formed within the globule's head. This new…

天体物理学 · 物理学 2009-11-13 Konstantin Getman , Eric Feigelson , Warrick Lawson , Patrick Broos , Gordon Garmire

We observed a 17$'\times17'$ region of the $\rho$ Oph molecular cloud, using the ACIS-I array onboard the {\it Chandra X-ray Observatory} (CXO). A 100-ks exposure observation revealed $\sim$ hundred X-ray sources above the detection limit…

天体物理学 · 物理学 2009-11-06 Kensuke Imanishi , Katsuji Koyama , Yohko Tsuboi

Clear identifications of Galactic young stellar clusters farther than a few kpc from the Sun are rare, despite the large number of candidate clusters. We aim to improve the selection of candidate clusters rich in massive stars with a…

We present observations of the star formation region NGC 7129 taken with the Multiband Imaging Photometer for Spitzer (MIPS). A significant population of sources, likely pre-main sequence members of the young stellar cluster, is revealed…

The IC 1396N cometary globule within the large nearby HII region IC 1396 has been observed with the ACIS detector on board the Chandra X-ray Observatory. We detect 117 X-ray sources, of which ~50-60 are likely members of the young open…

天体物理学 · 物理学 2008-11-26 Konstantin V. Getman , Eric D. Feigelson , Gordon Garmire , Patrick Broos , Junfeng Wang

The CMa R1 star-forming region contains several compact clusters as well as many young early-B stars. It is associated with a well-known bright rimmed nebula, the nature of which is unclear (fossil HII region or supernova remnant). To help…

太阳与恒星天体物理 · 物理学 2015-05-14 J. Gregorio-Hetem , T. Montmerle , C. V. Rodrigues , E. Marciotto , T. Preibisch , H. Zinnecker