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Related papers: NGC 2264 IRS1: The central engine and its cavity

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NGC7538 is a complex massive star-forming region. The region is composed of several radio continuum sources, one of which is IRS1, a high-mass protostar, from which a 0.3 pc molecular bipolar outflow was detected. Several maser species have…

Solar and Stellar Astrophysics · Physics 2015-05-28 G. Surcis , W. H. T. Vlemmings , R. M. Torres , H. J. van Langevelde , B. Hutawarakorn Kramer

We have used the Goddard IRAM 2-Millimeter Observer (GISMO) with the 30 m IRAM telescope to carry out a 2 mm survey of the Galaxy's central molecular zone (CMZ). These observations detect thermal emission from cold ISM dust, thermal…

Aims: Our goal is to set constraints on the evolutionary state of the dense core Cha-MMS1 in the Chamaeleon I molecular cloud. Methods: We analyze molecular line observations carried out with the new submillimeter telescope APEX. We look…

Astrophysics · Physics 2009-11-11 A. Belloche , B. Parise , F. F. S. van der Tak , P. Schilke , S. Leurini , R. Guesten , L. -A. Nyman

The dust enshrouded star IRS~3 in the central light year of our galaxy was partially resolved in a recent VLTI experiment. The presented observation is the first step in investigating both IRS~3 in particular and the stellar population of…

Context. Multi-wavelength studies of galaxies and galactic nuclei allow us to build a relatively more complete picture of the interstellar medium (ISM), especially in the dusty regions of starburst galaxies. An understanding of the physical…

Using continuum and $\text{C}^{18}\text{O}\:(2-1)$ line data obtained from the large ALMA program FAUST, we studied the structure of the protostellar binary system L1551 IRS5 at scales between 30 and 3,000 au to constrain its properties,…

Remarkable dust extinction features in the deep HST V and I images of the face-on Coma cluster spiral galaxy NGC 4921 show in unprecedented ways how ram pressure strips the ISM from the disk of a spiral galaxy. New VLA HI maps show a…

Astrophysics of Galaxies · Physics 2015-08-06 Jeffrey D. P. Kenney , Anne Abramson , Hector Bravo-Alfaro

We present near-infrared polarimetric images of the dusty circumstellar envelope (CSE) of IRAS 19306+1407, acquired at the United Kingdom Infrared Telescope (UKIRT) using the UKIRT 1-5 um Imager Spectrometer (UIST) in conjunction with the…

Astrophysics · Physics 2009-09-29 K. T. E. Lowe , T. M. Gledhill

During their late pulsating phase, AGB stars expel most of their mass in the form of massive dusty envelopes, an event that largely controls the composition of interstellar matter. The envelopes, however, are distant and opaque to visible…

We report our multi-band infrared (IR) imaging of the transitional millisecond pulsar system J1023+0038, a rare pulsar binary known to have an accretion disk in 2000--2001. The observations were carried out with ground-based and space…

High Energy Astrophysical Phenomena · Physics 2015-06-11 Xuebing Wang , Zhongxiang Wang , Nidia Morrell

We present 12.8 microns images of the core of NGC 1068 obtained with the BURST mode of the VLT/VISIR. We trace structures under the diffraction limit of one UT and we investigate the link between dust in the vicinity of the central engine…

Astrophysics · Physics 2009-11-13 A. Poncelet , C. Doucet , G. Perrin , H. Sol , P. O. Lagage

We revisit the published analyses of ROSAT X-ray observations of the star forming regions NGC 2264 and Chamaeleon I (~3 and ~5 Myr old respectively) in the light of newly published optical data. At odds with previous results on Chamaeleon I…

Astrophysics · Physics 2008-11-26 E. Flaccomio , G. Micela , S. Sciortino

As part of our massive spectroscopic survey of 25 Galactic globular clusters with MUSE, we performed multiple epoch observations of NGC 3201 with the aim of constraining the binary fraction. In this cluster, we found one curious star at the…

Very recently, a second companion on wider orbit has been discovered around GQ Lup. This is a low-mass accreting star partially obscured by a disk seen at high inclination. If detected, this disk may be compared to the known disk around the…

Solar and Stellar Astrophysics · Physics 2020-03-18 C. Lazzoni , R. Gratton , J. M. Alcalà , S. Desidera , A. Frasca , C. F. Manara , D. Mesa , E. Rigliaco , A. Vigan , A. Zurlo

We performed J- and R-band linear polarimetry with the 4.2 m William Herschel Telescope at the Observatorio del Roque de los Muchachos and with the 1.6 m telescope at the Observat\'orio do Pico dos Dias, respectively, to derive the magnetic…

Astrophysics of Galaxies · Physics 2015-05-28 Felipe O. Alves , José A. Acosta-Pulido , Josep M. Girart , Gabriel A. P. Franco , Rosario López

IRC+10216 is the nearest carbon star with a very high mass-loss rate. The existence of a binary companion has been hinted by indirect observational evidence, such as the bipolar morphology of its nebula and a spiral-like pattern in its…

Solar and Stellar Astrophysics · Physics 2015-06-23 Hyosun Kim , Ho-Gyu Lee , Nicolas Mauron , You-Hua Chu

We present observations of 10.6 square degrees of the Perseus molecular cloud at 24, 70, and 160 microns with the Spitzer Space Telescope Multiband Imaging Photometer for Spitzer (MIPS). The image mosaics show prominent, complex extended…

NGC 2146, a nearby luminous infrared galaxy (LIRG), presents evidence for outflows along the disk minor axis in all gas phases (ionized, neutral atomic and molecular). We present an analysis of the multi-phase starburst driven superwind in…

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…

Astrophysics of Galaxies · Physics 2015-05-20 W. J. de Wit , M. G. Hoare , R. D. Oudmaijer , D. E. A Nuernberger , H. E. Wheelwright , S. L. Lumsden

The IRAM interferometer has been used to detect the submm source HDF 850.1 found by Hughes et al. (1998) in the Hubble Deep Field. The flux density measured at 1.3mm is 2.2 mJy, in agreement with the flux density measured at the JCMT. The…

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