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We present [CII] observations of 20 strongly lensed dusty star forming galaxies at 2.1 < z < 5.7 using APEX and Herschel. The sources were selected on their 1.4 mm flux (S_1.4mm > 20 mJy) from the South Pole Telescope survey, with…

The effect of a newly born star cluster inside a giant molecular cloud (GMC) is to produce a hot bubble and a thin, dense shell of interstellar gas and dust swept up by the H II expansion, strong stellar winds, and repeated supernova…

天体物理学 · 物理学 2009-11-13 Lihong Yao , T. A. Bell , S. Viti , J. A. Yates , E. R. Seaquist

We present 90 GHz continuum imaging of 119 star-forming regions in 30 nearby galaxies observed with MUSTANG-2 on the Robert C. Byrd Green Bank Telescope as part of the Star Formation in Radio Survey. The 90 GHz data were combined with 3,…

We present 0.2arcsec-resolution Atacama Large Millimeter/submillimeter Array observations at 870 $\mu$m in a stellar mass-selected sample of 85 massive ($M_\mathrm{star}>10^{11}~M_\odot$) star-forming galaxies (SFGs) at z=1.9-2.6 in the…

We report new results from CARMA observations of both continuum and HCO+(1-0) emission at 3.4 mm from W3-SE, a molecular core of intermediate mass, together with the continuum observations at 1.1 and 0.85/0.45 mm with the SMA and JCMT. A…

太阳与恒星天体物理 · 物理学 2014-11-20 Lei Zhu , M. C. H. Wright , Jun-Hui Zhao , Yuefang Wu

We used the $H\alpha$ images from a large sample of nearby late-type dwarf galaxies to investigate properties of their emission structure. The sample consists of three hundred galaxies of the irregular (Irr), Magellanic irregular (Im), blue…

星系天体物理 · 物理学 2020-12-16 Karachentsev I. D. , Kaisin S. S

We present the results of 0.6"-resolution observations of CO J=3-2 line emission in 10 massive star-forming galaxies at z=2.2-2.5 with the Atacama Large Millimeter/submillimeter Array (ALMA). We compare the spatial extent of molecular gas…

星系天体物理 · 物理学 2023-10-24 Ken-ichi Tadaki , Tadayuki Kodama , Yusei Koyama , Tomoko L. Suzuki , Ikki Mitsuhashi , Ryota Ikeda

This article presents a multi-wavelength study towards S87, based on a dataset of submillimeter/far-/mid-infrared (sub-mm/FIR/MIR) images and molecular line maps. The sub-mm continuum emission measured with JCMT/SCUBA reveals three…

天体物理学 · 物理学 2009-11-13 Rui Xue , Yuefang Wu

In this work, we constrain the star-forming properties of all possible sites of incipient high-mass star formation in the Milky Way's Galactic Center. We identify dense structures using the CMZoom 1.3mm dust continuum catalog of objects…

We present a multiwavelength study of 28 Galactic massive star-forming H II regions. For 17 of these regions, we present new distance measurements based on Gaia DR2 parallaxes. By fitting a multicomponent dust, blackbody, and power-law…

星系天体物理 · 物理学 2018-09-20 Breanna A. Binder , Matthew S. Povich

We use the James Clerk Maxwell Telescope's SCUBA-2 camera to image a 400 arcmin^2 area surrounding the GOODS-N field. The 850 micron rms noise ranges from a value of 0.49 mJy in the central region to 3.5 mJy at the outside edge. From these…

星系天体物理 · 物理学 2014-12-04 A. J. Barger , L. L. Cowie , C. -C. Chen , F. N. Owen , W. -H. Wang , C. M. Casey , N. Lee , D. B. Sanders , J. P. Williams

To investigate the ingredients, which allow star-forming galaxies to present Lyalpha line in emission, we studied the kinematics and gas phase metallicity (Z) of the interstellar medium. We used multi-object NIR spectroscopy with…

宇宙学与河外天体物理 · 物理学 2015-06-12 Lucia Guaita , Harold Francke , Eric Gawiser , Franz E. Bauer , Matthew Hayes , Goran Ostlin , Nelson Padilla

We have compiled the $\sim$4-400 GHz broad spectra of 32 Class II protoplanetary disks in the Taurus-Auriga region, which represents the brightest one-third of sources detected in the submillimeter band in this region. The spectra at >20…

地球与行星天体物理 · 物理学 2025-02-21 Chia-Ying Chung , An-Li Tsai , Melvyn Wright , Wenrui Xu , Feng Long , Mark A. Gurwell , Hauyu Baobab Liu

We investigate the properties of the galaxies selected from the deepest 850-micron survey undertaken to date with SCUBA-2 on the JCMT. This deep 850-micron imaging was taken in parallel with deep 450-micron imaging in the very best…

The correlation between the far-infrared (FIR) and radio emission is well established for nearby star forming galaxies. Many applications, in particular the radio-to-submm spectral index redshift indicator, tacitly assume that the relation…

天体物理学 · 物理学 2007-05-23 M. A. Garrett

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

Massive, early type stars have been detected as radio sources for many decades. Their thermal winds radiate free-free continuum and in binary systems hosting a colliding-wind region, non-thermal emission has also been detected. To date, the…

太阳与恒星天体物理 · 物理学 2020-07-22 Paula Benaglia , Michäel De Becker , C. H. Ishwara-Chandra , Huib Intema , Natacha L. Isequilla

After two ALMA observing cycles, only a handful of [CII] $158\,\mu m$ emission line searches in z>6 galaxies have reported a positive detection, questioning the applicability of the local [CII]-SFR relation to high-z systems. To investigate…

星系天体物理 · 物理学 2015-11-04 L. Vallini , S. Gallerani , A. Ferrara , A. Pallottini , B. Yue