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相关论文: A Multiwavelength Study of Young Massive Star-Form…

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Massive stars form whilst they are still embedded in dense envelopes. As a result, the roles of rotation, mass loss and accretion in massive star formation are not well understood. This study evaluates the source of the Q-band, lambda=19.5…

太阳与恒星天体物理 · 物理学 2015-06-04 H. E. Wheelwright , W. J. de Wit , R. D. Oudmaijer , M. G. Hoare , S. L. Lumsden , T. Fujiyoshi , J. L. Close

We present an analysis of the extended mid-infrared (MIR) emission of the Great Observatories All-Sky LIRG Survey (GOALS) sample based on 5-15um low resolution spectra obtained with the IRS on Spitzer. We calculate the fraction of extended…

The Red MSX Source (RMS) survey is a multi-wavelength programme of follow-up observations designed to distinguish between genuine massive young stellar objects (MYSOs) and other embedded or dusty objects, such as ultra compact (UC) HII…

天体物理学 · 物理学 2007-05-23 J. C. Mottram , J. S. Urquhart , M. G. Hoare , S. L. Lumsden , R. D. Oudmaijer

We present a 4.5-4.85 micron R=5000 spectrum of the low mass class I young stellar object GSS 30 IRS1 (L=25L_sun) in the rho Ophiuchus core, observed with the infrared spectrometer (ISAAC) on the Very Large Telescope (VLT-UT1). Strong line…

天体物理学 · 物理学 2009-11-07 K. M. Pontoppidan , F. L. Schoeier , E. F. van Dishoeck , E. Dartois

The young massive star-forming region IRAS05358+3543 was observed at high-spatial resolution in the continuum emission at 3.1 and 1.2mm with the Plateau de Bure Interferometer, and at 875 and 438mum with the Submillimeter Array. We resolve…

天体物理学 · 物理学 2009-11-13 H. Beuther , S. Leurini , P. Schilke , F. Wyrowski , K. M. Menten , Q. Zhang

We present in this paper a comprehensive study of the H II region IC 1396 and its star formation activity, in which multi-wavelength data ranging from the optical to the near- and far-infrared were employed. The surface density distribution…

太阳与恒星天体物理 · 物理学 2015-06-12 Ya Fang Huang , Jin Zeng Li

We present a comprehensive study of star formation toward the H II region S155. Star-formation activities therein were investigated based on multi-wavelength data from optical to the far-infrared. The surface density distribution of…

太阳与恒星天体物理 · 物理学 2015-06-19 Ya Fang Huang , Jin Zeng Li , Travis A. Rector , Zhou Fan

We present a sample of mid-infrared detected sources from the European Large Area ISO Survey (ELAIS) regions characterised by strong mid-IR radiation with faint near-IR and optical counterparts. These extreme mid-to-near-IR objects (EMNOs)…

天体物理学 · 物理学 2009-11-10 P. H. Johansson , P. Vaisanen , M. Vaccari

We searched for diffuse interstellar bands (DIBs) in the 0.91$<\lambda<$1.33 $\mu$m region by analyzing the near-infrared (NIR) high-resolution ($R=20,000$ and 28,000) spectra of 31 reddened early-type stars ($0.04<E(B-V)<4.58$) and an…

IRAS 22134+5834 was observed in the centimeter with (E)VLA, 3~mm with CARMA, 2~mm with PdBI, and 1.3~mm with SMA, to study the continuum emission as well as the molecular lines, that trace different physical conditions of the gas to study…

The MYStIX project (Massive Young Star-Forming Complex Study in Infrared and X-rays) provides a comparative study of 20 Galactic massive star-forming complexes (d = 0.4 to 3.6 kpc). Probable stellar members in each target complex are…

We have discovered two compact sources of shocked H2 2.12-micron emission coincident with Mol 160 (IRAS 23385+6053), a massive star-forming core thought to be a precursor to an ultracompact HII region. The 2.12-micron sources lie within 2"…

星系天体物理 · 物理学 2015-06-03 Grace Wolf-Chase , Michael Smutko

We present high spatial resolution Submillimeter Array observations and supplementary single-dish photometry of the molecular gas and dust around IRAS 04158+2805, a young source with spectral type M5-M6 in the Taurus star-forming region. A…

天体物理学 · 物理学 2009-11-13 Sean M. Andrews , Michael C. Liu , Jonathan P. Williams , K. N. Allers

The formation of massive stars and their arrival on the zero-age main-sequence occurs hidden behind dense clouds of gas and dust. In the giant Hii region NGC 3603, the radiation of a young cluster of OB stars has dispersed dust and gas in…

太阳与恒星天体物理 · 物理学 2015-10-14 C. A. Hummel , T. Stanke , R. Galvan-Madrid , B. S. Koribalski

We apply mid-infrared spectro-interferometry to the massive young stellar object CRL2136. The observations were performed with the Very Large Telescope Interferometer and the MIDI instrument at a 42m baseline probing angular scales of 50…

星系天体物理 · 物理学 2015-05-20 W. J. de Wit , M. G. Hoare , R. D. Oudmaijer , D. E. A Nuernberger , H. E. Wheelwright , S. L. Lumsden

We present a new mid-infrared (12.5micron) map of the BN/KL high-mass star-forming complex in Orion using the LWS instrument at Keck I. Despite poor weather we achieved nearly diffraction-limited images (FWHM = 0.38'') over a roughly 25'' X…

天体物理学 · 物理学 2016-08-30 R. Y. Shuping , Mark Morris , John Bally

As images and spectra from ISO and Spitzer have provided increasingly higher-fidelity representations of the mid-infrared (MIR) and Polycyclic Aromatic Hydrocarbon (PAH) emission from galaxies and galactic and extra-galactic regions, more…

宇宙学与河外天体物理 · 物理学 2015-05-20 Daniela Calzetti

We report molecular line and dust continuum observations, made with the SEST telescope, towards four young high-mass star forming regions associated with highly luminous (L> 6x10^5 Lsun) IRAS sources (15290-5546, 15502-5302, 15567-5236 and…

星系天体物理 · 物理学 2014-11-20 Guido Garay , Diego Mardones , Leonardo Bronfman , Jorge May , Luis Chavarria , Lars-Ake Nyman

Mid-infrared (MIR) shells or bubbles around expanding H II regions have received much attention due to their ability to initiate a new generation of star formation. We present multi-wavelength observations around two bubbles associated with…

星系天体物理 · 物理学 2015-06-05 L. K. Dewangan , D. K. Ojha , B. G. Anandarao , S. K. Ghosh , S. Chakraborti

We present Spitzer IRS spectra and MIPS photometry of 12 radio-loud QSOs with FR II morphologies at z ~ 0.3. Six of the sources are surrounded by luminous extended emission-line regions (EELRs), while the other six do not have such extended…

宇宙学与河外天体物理 · 物理学 2011-02-11 Hai Fu , Alan Stockton
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