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相关论文: Centimetre continuum emission from young stellar o…

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A very sensitive X-ray investigation of the giant HII region N11 in the LMC was performed using the Chandra X-ray Observatory. The 300ks observation reveals X-ray sources with luminosities down to 10^32 erg/s, increasing by more than a…

高能天体物理现象 · 物理学 2015-06-22 Yael Naze , Q. Daniel Wang , You-Hua Chu , Robert Gruendl , Lida Oskinova

We use various analytical techniques to study Young Stellar Objects (YSOs) in an area of approximately $10' \times 10'$ in the IRAS 18456-0223 star-forming region. We use archival optical (Gaia DR3) and infrared (2MASS, UKIDSS, Spitzer,…

太阳与恒星天体物理 · 物理学 2026-03-06 Nilesh Pandey , U. S. Kamath

The BN/KL region of the Orion Nebula is the nearest region of high mass star formation in our galaxy. As such, it has been the subject of intense investigation at a variety of wavelengths, which have revealed it to be brightest in the…

The Australia Telescope Compact Array (ATCA) has been used to image class I methanol masers at 9.9, 25 (a series from J=2 to J=9), 84, 95 and 104 GHz located in the vicinity of IRAS 16547-4247 (G343.12-0.06), a luminous young stellar object…

天体物理学 · 物理学 2008-11-26 M. A. Voronkov , K. J. Brooks , A. M. Sobolev , S. P. Ellingsen , A. B. Ostrovskii , J. L. Caswell

We present diffraction-limited images in the 11.3 micron PAH band and in the continuum at 11.9 microns of the S287B star forming region obtained with the newly commissioned mid-infrared imager/spectrometer VISIR at the VLT. In both filters…

天体物理学 · 物理学 2009-11-11 M. E. van den Ancker

We report on the identification of a new possible Isolated Neutron Star candidate in archival ROSAT observations. The source 1RXS J214303.7+065419, listed in the ROSAT Bright Survey as RBS 1774, is very soft, exhibits a thermal spectrum…

天体物理学 · 物理学 2009-11-07 L. Zampieri , S. Campana , R. Turolla , M. Chieregato , R. Falomo , D. Fugazza , A. Moretti , A. Treves

This work focuses on the ice features toward the binary protostellar system Ced 110 IRS 4A and 4B, and observed with JWST as part of the Early Release Science Ice Age collaboration. We aim to explore the JWST observations of the binary…

We report 1.3 cm and 6 cm continuum observations toward the massive proto-stellar candidate G11.11-0.12P1 using the Karl G. Jansky Very Large Array (VLA). We detect a string of four unresolved radio continuum sources coincident with the…

We report the discovery made using the Australia Telescope Compact Array of a remarkable string of radio emission towards IRAS 16562-3959, a luminous infrared source with a bolometric luminosity of $7.0\times10^4$ \Lsun. The radio emission…

太阳与恒星天体物理 · 物理学 2010-11-23 Andrés Ernesto Guzman , Guido Garay , Kate Jane Brooks

We compiled and investigated the infrared/sub-mm/mm SED of the new outburst star IRAS 05436-0007 in quiescent phase. The star is a flat-spectrum source, with an estimated total luminosity of L_bol ~ 5.6 L_sun, typical of low-mass T Tauri…

天体物理学 · 物理学 2009-11-10 P. Ábrahám , Á. Kóspál , Sz. Csizmadia , A. Moór , M. Kun , G. Stringfellow

We present K-band spectra of newly born OB stars in the obscured Galactic giant H II region W51A and ~ 0.8'' angular resolution images in the J, H and K_S-bands. Four objects have been spectroscopically classified as O-type stars. The mean…

天体物理学 · 物理学 2009-11-13 E. Figueredo , R. D. Blum , A. Damineli , P. S. Conti , C. L. Barbosa

Observations of Lynds Dark Nebula 1221 from the Spitzer Space Telescope are presented. These data show three candidate protostars towards L1221, only two of which were previously known. The infrared observations also show signatures of…

We present an analysis of the L 1641 outflow region using broad-band and narrow-band imaging data at mid-infrared wavelengths from ISOCAM. We detect a total of 34 sources in the $7.65^{\prime}$ x $8.40^{\prime}$ region covered by the…

天体物理学 · 物理学 2009-11-10 Babar Ali , Alberto Noriega-Crespo

ASCA observation of a region containing a Class 0 protostar, IRAS 20386+6751 in the L1157 dark cloud, has been carried out. The protostar was not detected, and the 95% upper limit to the luminosity depends on assumed Nh : Lx(0.5-10 keV) <…

天体物理学 · 物理学 2015-06-24 T. Furusho , N. Y. Yamasaki , T. Ohashi , Y. Saito , W. Voges

We present results of continuum and spectral line observations with ALMA and 22 GHz water (H$_2$O) maser observations using KaVA and VERA toward a high-mass star-forming region, G25.82-0.17. Multiple 1.3 mm continuum sources are revealed,…

We take advantage of the very simple morphology of RCW 120 -- a perfect bubble -- to understand the mechanisms triggering star formation around an HII region and to establish what kind of stars are formed there. We present 870 microns…

星系天体物理 · 物理学 2009-11-13 L. Deharveng , A. Zavagno , F. Schuller , J. Caplan , M. Pomarès , C. De Breuck

Context. IRAS 19312+1950 is an isolated infrared source that exhibits a characteristic quasi-point-symmetric morphology in the near- and mid-infrared images and is also very bright in molecular radio lines. Because of its unique…

We have performed a 1.3 centimeter survey of 24 massive young stellar objects (MYSOs) using the Expanded Very Large Array (EVLA). The sources in the sample exhibit a broad range of massive star formation signposts including Infrared Dark…

星系天体物理 · 物理学 2015-03-30 C. L. Brogan , T. R. Hunter , C. J. Cyganowski , R. K. Friesen , C. J. Chandler , R. Indebetouw

Observations at mid-infrared (4.8-17.65 um) and radio (0.7-1.3 cm) wavelengths are used to constrain the structure of the high-mass star-forming region W3 IRS5 on 0.1'' (200 AU) scales. Two bright mid-infrared sources are detected, as well…

天体物理学 · 物理学 2009-11-10 F. F. S. van der Tak , P. G. Tuthill , W. C. Danchi

Context: To investigate the joint evolution of active galactic nuclei and star formation in the Universe. Aims: In the 1.4 GHz survey with the Australia Telescope Compact Array of the Chandra Deep Field South and the European Large Area ISO…

天体物理学 · 物理学 2009-11-13 E. Middelberg , R. P. Norris , S. Tingay , M. Y. Mao , C. J. Phillips , A. W. Hotan