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Related papers: Outflows from Luminous YSOs: An Infrared Polarimet…

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New early release observations of the Cepheus E outflow and its embedded source, obtained with the Spitzer Space Telescope, are presented. We show the driving source is detected in all 4 IRAC bands, which suggests that traditional Class 0…

We present Spitzer Space Telescope IRAC and MIPS observations toward a sample of nine high-mass star forming regions at a distance of around 2 kpc. Based on IRAC and MIPS 24 $\mu$m photometric results and 2MASS JHKs data, we carry out a…

We present constraints on the molecular outflows in a sample of five Hyper-Luminous Infrared Galaxies using Herschel observations of the OH doublet at 119 {\mu}m. We have detected the OH doublet in three cases: one purely in emission and…

Astrophysics of Galaxies · Physics 2016-07-27 D. Calderón , F. E. Bauer , S. Veilleux , J. Graciá-Carpio , E. Sturm , P. Lira , S. Schulze , S. Kim

The interstellar magnetic field (ISMF) near the heliosphere is a basic part of the solar neighborhood that can only be studied using polarized starlight. Results of an ongoing survey of polarized starlight are analyzed with the goal of…

We present results of a spectral survey towards a dense molecular condensation and young stellar objects (YSOs) projected on the border of the HII region RCW 120 and discuss emission of 20 molecules which produce the brightest lines. The…

Astrophysics of Galaxies · Physics 2024-03-20 K. V. Plakitina , M. S. Kirsanova , S. V. Kalenskii , S. V. Salii , D. S. Wiebe

Aims: In this paper we present a case study to investigate conditions necessary to detect a characteristic magnetic field substructure embedded in a large-scale field. A helical magnetic field with a surrounding hourglass shaped field is…

Solar and Stellar Astrophysics · Physics 2017-07-12 S. Reissl , D. Seifried , S. Wolf , R. Banerjee , R. S. Klessen

Mapping Mg II resonance emission scattered by galactic winds offers a means to determine the spatial extent and density of the warm outflow. Using Keck/LRIS spectroscopy, we have resolved scattered Mg II emission to the east of 32016857, a…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-15 Crystal L. Martin , Alice E. Shapley , Alison L. Coil , Katherine A. Kornei , Norman Murray , Anna Pancoast

Context. Outflows and jets are the first signposts of ongoing star formation processes in any molecular cloud, yet their study in optical bands provides limited results due to the large extinction present. Near-infrared unbiased wide-field…

The Sun is located inside an extremely low density and quite irregular volume of the interstellar medium, known as the Local Cavity (LC). It has been widely believed that some kind of interaction could be occurring between the LC and Loop…

Astrophysics of Galaxies · Physics 2012-05-18 Fábio P. Santos , Wagner Corradi , Wilson Reis

We present 850 $\mu$m imaging polarimetry data of the $\rho$ Oph-A core taken with the Submillimeter Common-User Bolometer Array-2 (SCUBA-2) and its polarimeter (POL-2), as part of our ongoing survey project, BISTRO (B-fields In STar…

Astrophysics of Galaxies · Physics 2018-05-23 Jungmi Kwon , Yasuo Doi , Motohide Tamura , Masafumi Matsumura , Kate Pattle , David Berry , Sarah Sadavoy , Brenda C. Matthews , Derek Ward-Thompson , Tetsuo Hasegawa , Ray S. Furuya , Andy Pon , James Di Francesco , Doris Arzoumanian , Saeko S. Hayashi , Koji S. Kawabata , Takashi Onaka , Minho Choi , Miju Kang , Thiem Hoang , Chang Won Lee , Sang-Sung Lee , Hong-Li Liu , Tie Liu , Shu-Ichiro Inutsuka , Chakali Eswaraiah , Pierre Bastien , Woojin Kwon , Shih-Ping Lai , Keping Qiu , Simon Coude , Erica Franzmann , Per Friberg , Sarah F. Graves , Jane S. Greaves , Martin Houde , Doug Johnstone , Jason M. Kirk , Patrick M. Koch , Di Li , Harriet Parsons , Ramprasad Rao , Mark Rawlings , Hiroko Shinnaga , Sven Van Loo , Yusuke Aso , Do-Young Byun , Huei-Ru Chen , Mike C. -Y. Chen , Wen Ping Chen , Tao-Chung Ching , Jungyeon Cho , Antonio Chrysostomou , Eun Jung Chung , Emily Drabek-Maunder , Stewart P. S. Eyres , Jason Fiege , Rachel K. Friesen , Gary Fuller , Tim Gledhill , Matt J. Griffin , Qilao Gu , Jennifer Hatchell , Wayne Holland , Tsuyoshi Inoue , Kazunari Iwasaki , Il-Gyo Jeong , Ji-Hyun Kang , Sung-Ju Kang , Francisca Kemper , Gwanjeong Kim , Jongsoo Kim , Kee-Tae Kim , Kyoung Hee Kim , Mi-Ryang Kim , Shinyoung Kim , Kevin M. Lacaille , Jeong-Eun Lee , Dalei Li , Hua-Bai Li , Junhao Liu , Sheng-Yuan Liu , A-Ran Lyo , Steve Mairs , Gerald H. Moriarty-Schieven , Fumitaka Nakamura , Hiroyuki Nakanishi , Nagayoshi Ohashi , Nicolas Peretto , Tae-Soo Pyo , Lei Qian , Brendan Retter , John Richer , Andrew Rigby , Jean-Franois Robitaille , Giorgio Savini , Anna M. M. Scaife , Archana Soam , Ya-Wen Tang , Kohji Tomisaka , Hongchi Wang , Jia-Wei Wang , Anthony P. Whitworth , Hsi-Wei Yen , Hyunju Yoo , Jinghua Yuan , Chuan-Peng Zhang , Guoyin Zhang , Jianjun Zhou , Lei Zhu , Philippe Andre , C. Darren Dowell , Sam Falle , Yusuke Tsukamoto , Takao Nakagawa , Yoshihiro Kanamori , Akimasa Kataoka , Masato I. N. Kobayashi , Tetsuya Nagata , Hiro Saito , Masumichi Seta , Tetsuya Zenko

We investigate an infrared-excess source called G2 or Dusty S-cluster Object (DSO) moving on a highly eccentric orbit around the Galaxy's central black hole, Sgr A*. We use, for the first time, near-infrared polarimetric imaging data to…

Astrophysics of Galaxies · Physics 2016-10-05 B. Shahzamanian , A. Eckart , M. Zajacek , M. Valencia-S. , N. Sabha , L. Moser , M. Parsa , F. Peissker , C. Straubmeier

We present 1420 MHz (lambda=21cm) observations of polarized emission from an area of 117 degree square in the Galactic plane in Cygnus, covering 82 < l < 95, -3.5 < b < +5.5, a complex region where the line of sight is directed nearly along…

Astrophysics · Physics 2009-11-07 B. Uyaniker , T. L. Landecker , A. D. Gray , R. Kothes

We present the first thermal-infrared imaging photometry for several embedded sources in the OMC1 South cloud core in the Orion nebula, and propose that some of these drive optical Herbig-Haro jets emerging from the region. Thermal-infrared…

Astrophysics · Physics 2009-11-10 Nathan Smith , John Bally , Ralph Y. Shuping , Mark Morris , Thomas L. Hayward

We present results from the first systematic search for outlying HII regions, as part of a sample of 96 emission-line point sources (referred to as ELdots - emission-line dots) derived from the NOAO Survey for Ionization in Neutral Gas…

We present {\it Spitzer} IRAC mid-infrared photometry on the massive star forming region AFGL 437 (IRAS 03035+5819). From the IRAC colour-colour diagram, we identify several new embedded YSOs within 64 arcsec of the central compact cluster.…

Astrophysics of Galaxies · Physics 2009-12-18 L. K. Dewangan , B. G. Anandarao

We report the discovery of polarized flux at 2.2 micron from the bright shell of the approximately 320 year old supernova remnant Cas A. The fractional polarizations are comparable at 6 cm and 2.2 micron, and the polarization angles are…

Astrophysics · Physics 2009-11-07 T. J. Jones , L. Rudnick , T. DeLaney , J. Bowden

Magnetic fields are believed to have a vital role in regulating and shaping the flow of material onto and away from protostars during their initial mass accretion phase. It is becoming increasingly accepted that bipolar outflows are…

Astrophysics · Physics 2009-07-09 Antonio Chrysostomou , Philip W. Lucas , James H. Hough

We present near-IR SINFONI observations of three Galactic HII regions: RVW79, RCW82 and RCW120. We identify the ionizing stars of each region: they are early to late O stars, close to the main sequence. We derive their stellar and wind…

Solar and Stellar Astrophysics · Physics 2015-05-14 F. Martins , M. Pomares , L. Deharveng , A. Zavagno , J. -C. Bouret

Molecular globules and pillars are spectacular features, found only in the interface region between a molecular cloud and an HII-region. Impacting Far-ultraviolet (FUV) radiation creates photon dominated regions (PDRs) on their surfaces…

We have observed optical (Halpha and [SII]) and near-IR (S(1) line of H2) deep fields and taken optical spectra using the 2.56m NOT, as well as a near-UV deep field (U band) using the 3.58m NTT. In addition we present new SPITZER (IRAC and…

Astrophysics · Physics 2009-11-13 M. Gålfalk , G. Olofsson