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相关论文: Sub-arcsecond sub-mm continuum observations of Ori…

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A systematic survey measuring the submillimetre continuum luminosity in radio galaxies between redshifts z ~ 0.1 - 5 is currently in progress. The first results from observations with the bolometer array SCUBA on the JCMT suggest a trend of…

天体物理学 · 物理学 2007-05-23 D. H. Hughes , J. S. Dunlop , E. N. Archibald , S. Rawlings , S. A. Eales

Abridged. Methods. We made use of the Karl G. Jansky Very Large Array (VLA) in the B configuration at K band, and in the A configuration at both Ku and C bands, in order to image the radio continuum emission towards 25 H$_2$O maser sites…

太阳与恒星天体物理 · 物理学 2018-11-14 A. Sanna , L. Moscadelli , C. Goddi , V. Krishnan , F. Massi

We present 7mm Very Large Array continuum images of the starburst galaxy M82. On arcsecond scales, two-thirds of the 7mm continuum consists of free-free emission from HII regions. In the subarcsecond resolution map, we identify 14 compact…

宇宙学与河外天体物理 · 物理学 2009-11-13 Chao-Wei Tsai , Jean L. Turner , Sara C. Beck , David S. Meier , Paul T. P. Ho

We present a sub-kpc resolved study of the interstellar medium properties in SDP.81, a z=3.042 strongly gravitationally lensed dusty star-forming galaxy, based on high-resolution, multi-band ALMA observations of the FIR continuum, CO ladder…

星系天体物理 · 物理学 2020-04-15 M. Rybak , J. A. Hodge , S. Vegetti , P. van der Werf , P. Andreani , L. Graziani , J. P. McKean

We present new measurements of the flux densities at submillimeter wavelengths based on ALMA band 7 (338 GHz) and band 9 (679 GHz) observations to better constrain the origin of the continuum emission of the Mira AB binary system and to…

太阳与恒星天体物理 · 物理学 2016-01-27 Pere Planesas , Javier Alcolea , Rafael Bachiller

While most sources above 10^5Lsun have already formed an Ultracompact HII region (UCHII), this is not necessarily the case for sources of lower luminosity. Characterizing sources in the transition phase, i.e., very luminous objects without…

天体物理学 · 物理学 2009-11-13 H. Beuther , Q. Zhang , T. R. Hunter , T. K. Sridharan , E. A. Bergin

We present sensitive high angular resolution submillimeter and millimeter observations of torsionally/vibrationally highly excited lines of the CH$_3$OH, HC$_3$N, SO$_2$, and CH$_3$CN molecules and of the continuum emission at 870 and 1300…

星系天体物理 · 物理学 2015-05-19 Luis A. Zapata , Johannes Schmid-Burgk , Karl M. Menten

We present sub-arcsecond resolution IRAM PdBI interferometry of eight submillimeter galaxies at redshifts from 2 to 3.4, where we detect continuum at 1mm and/or CO lines at 3 and 1 mm. The CO 3-2/4-3 line profiles in five of the sources are…

天体物理学 · 物理学 2009-07-09 L. J. Tacconi , R. Neri , S. C. Chapman , R. Genzel , I. Smail , R. J. Ivison , F. Bertoldi , A. Blain , P. Cox , T. Greve , A. Omont

The VLBA and the VLA have been used to image the continuum radio emission from Mrk 231, a Seyfert 1 galaxy and the brightest infrared galaxy in the local universe. The smallest scales reveal a double source less than 2 pc in extent. The…

天体物理学 · 物理学 2009-10-31 J. S. Ulvestad , J. M. Wrobel , C. L. Carilli

We present far-infrared and millimetric observations of a sample of 3C objects. Millimetre data were taken at 1.25 mm with the IRAM 30m antenna feeding the MPIfR bolometer array. Mid-infrared (MIR) and far-infrared (FIR) photometry were…

天体物理学 · 物理学 2016-08-30 Paola Andreani , Robert A. E. Fosbury , Ilse van Bemmel , Wolfram Freudling

We present results from a 2300 arcmin^2 survey of the Orion A molecular cloud at 450 and 850 micron using the Submillimetre Common-User Bolometer Array (SCUBA) on the James Clerk Maxwell Telescope. The region mapped lies directly south of…

天体物理学 · 物理学 2008-11-26 Doug Johnstone , John Bally

The origin of the tight radio--IR correlation in galaxies has not been fully understood. One reason is the uncertainty about which heating sources (stars or diffuse interstellar radiation field)provide the energy that is absorbed by dust…

天体物理学 · 物理学 2008-02-06 F. S. Tabatabaei , R. Beck , M. Krause , E. M. Berkhuijsen , R. Gehrz , K. D. Gordon , J. L. Hinz , G. H. Rieke

Observations of dark cloud cores have been carried out in the mid-infrared using ISOCAM and in the far-infrared using ISOPHOT, both aboard the Infrared Space Observatory. The cores are in most cases detected in emission at 200 and 170…

天体物理学 · 物理学 2007-05-23 Aurore Bacmann , Philippe Andre , Derek Ward-Thompson

Using a combination of data from the Antarctic Submillimeter Telescope and Remote Observatory (AST/RO), the Arizona Radio Observatory Kitt Peak 12m telescope and the Arizona Radio Observatory 10m Heinrich Hertz Telescope, we have studied…

天体物理学 · 物理学 2009-11-10 Christopher Groppi , Craig Kulesa , Christopher Walker , Christopher Martin

We report Subaru/PFS spectroscopic follow-up of a radio-loud quasar at $z=1.715$ from the UNVEIL radio AGN catalog and with X-ray detections. The PFS spectrum displays a broad MgII emission line with an $\mathrm{FWHM}\gtrsim4000\ km/s$,…

Observations of submillimeter lines of CO (up to J=6-5), HCO+, HCN (up to J=4-3) and their isotopes from circumstellar disks around low mass pre-main sequence stars are presented. The different line ratios and optical depths indicate that…

天体物理学 · 物理学 2009-11-07 Gerd-Jan van Zadelhoff , Ewine F. van Dishoeck , Wing-Fai Thi , Geoffrey A. Blake

The formation of hypercompact (HC) HII regions is an important stage in massive star formation. Spectral line and continuum observations can explore its dynamic conditions. We present high angular resolution observations carried out with…

星系天体物理 · 物理学 2014-09-29 Chuan-Peng Zhang , Jun-Jie Wang , Jin-Long Xu , Friedrich Wyrowski , Karl M. Menten

Orion KL is one of the most frequently observed sources in the Galaxy, and the site where many molecular species have been discovered for the first time. With the availability of powerful wideband backends, it is nowadays possible to…

星系天体物理 · 物理学 2017-09-20 J. R. Rizzo , B. Tercero , J. Cernicharo

We present initial results of an ongoing search for interferometric calibrators at submillimeter (sub-mm) wavelengths with the Submillimeter Array (SMA). Powerful radio galaxies are commonly used as calibrators at centimeter and millimeter…

天体物理学 · 物理学 2009-11-10 Y. -N. Su , S. -Y. Liu , J. Lim , N. Ohashi , H. Beuther , Q. Zhang , P. Sollins , T. Hunter , T. K. Sridharan , J. -H. Zhao , P. T. P. Ho

We observe the 1.2 mm continuum emission around the OB cluster forming region G10.6-0.4, using the IRAM 30m telescope MAMBO-2 bolometer array and the Submillimeter array. Comparison of the Spitzer 24 $\mu$m and 8 $\mu$m images with our 1.2…

太阳与恒星天体物理 · 物理学 2015-05-30 Hauyu Baobab Liu , Guillermo Quintana-Lacaci , Ke Wang , Paul T. P. Ho , Zhi-Yun Li , Qizhou Zhang , Zhiyu Zhang