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Related papers: Molecular outflows in the young open cluster IC348

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The dark cloud Lynds 723 (L723) is a low-mass star-forming region where one of the few known cases of a quadrupolar CO outflow has been reported. Two recent works have found that the radio continuum source VLA 2, towards the centre of the…

Astrophysics of Galaxies · Physics 2015-05-19 R. Lopez , J. A. Acosta-Pulido , G. Gomez , R. Estalella , C. Carrasco-Gonzalez

The infrared young stellar outflow source MHO 3252 Y3 in the Serpens South star-forming region was found to be variable. The available photometric data can be fitted with a double peaked light curve of 904 d period. Color variations are…

Solar and Stellar Astrophysics · Physics 2018-09-19 Klaus W. Hodapp , Rolf Chini

We have observed a cluster forming clump (MM3) associated with the infrared dark cloud G34.43+00.24 in the 1.3 mm continuum and the CH3OH, CS, 13CS, SiO, CH3CH2CN, and HCOOCH3 lines with the Atacama Large Millimeter/submillimeter Array and…

We present a census of molecular outflows across four active regions of star formation in the Perseus molecular cloud (NGC 1333, IC348/HH211, L1448 and L1455), totalling an area of over 1000 sq arcmin. This is one of the largest surveys of…

Astrophysics of Galaxies · Physics 2015-05-19 Emily I. Curtis , John S. Richer , Jonathan J. Swift , Jonathan P. Williams

This work aims at investigating the molecular gas component in the vicinity of two young stellar object (YSO) candidates identified at the border of the HII region G034.8-0.7 that is evolving within a molecular cloud shocked by the SNR W44.…

Astrophysics of Galaxies · Physics 2015-05-13 S. Paron , M. E. Ortega , M. Rubio , G. Dubner

Aims. This work aims at investigating the molecular gas in the surroundings of the ultra-compact HII region G045.47+0.05 looking for evidence of molecular outflows. Methods. We carried out observations towards a region of 2 arcmin x 2…

Astrophysics of Galaxies · Physics 2015-06-11 M. E. Ortega , S. Paron , S. Cichowolski , M. Rubio , G. Dubner

We have used the 2.56m Nordic Optical Telescope (NOT) to observe two deep fields in L1641N, selected on the basis of previous shock studies, using the 2.12 micron transition of H2 (and a Ks filter to sample the continuum) for a total…

Astrophysics · Physics 2007-05-23 M. Gaalfalk , G. Olofsson

We present a survey of molecular outflows across the dark cloud complex in the Cygnus region, based on 46.75 deg^2 field of CO isotopologues data from Milky Way Imaging Scroll Painting (MWISP) survey. A supervised machine learning…

Solar and Stellar Astrophysics · Physics 2020-05-13 Shaobo Zhang , Ji Yang , Ye Xu , Xuepeng Chen , Yang Su , Yan Sun , Xin Zhou , Yingjie Li , Dengrong Lu

Jets and outflows are associated with young stellar objects across the stellar mass spectrum, from brown dwarf protostars to massive, Ae/Be stars. Frequently, the jet morphology is spatially discontinuous because of the temporal variability…

Solar and Stellar Astrophysics · Physics 2021-04-14 Rosario López , Angels Riera , Robert Estalella , Gabriel Gómez

We have made a serendipitous discovery of an enigmatic outflow source, IRAS 05506+2414 (hereafter IRAS 05506), as part of a multi-wavelength survey of pre-planetary nebulae (PPNs). The HST optical and near-infrared images show a bright…

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…

We present the results of a deep search for the molecular hydrogen shock fronts associated with young stellar outflows in the giant molecular cloud and massive star forming region W51. A total of 14 outflows were identified, and a few of…

Astrophysics · Physics 2009-11-07 Klaus W. Hodapp , Christopher J. Davis

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

We report here on the first proper motion measurements of molecular hydrogen emission features in the Herbig-Haro 46/47 outflow. Assuming a distance of 350 pc to this flow, the inferred tangential velocities range from a few tens to almost…

Investigating the outflows emanating from young stellar objects (YSOs) on sub-arcsecond scales provides important clues to the nature of the underlying accretion-ejection process occurring near the central protostar. We have investigated…

Solar and Stellar Astrophysics · Physics 2015-06-19 Marc C. White , Peter J. McGregor , Geoffrey V. Bicknell , Raquel Salmeron , Tracy L. Beck

We discuss wide-field near-IR imaging of the NGC1333, L1448, L1455 and B1 star forming regions in Perseus. The observations have been extracted from a much larger narrow-band imaging survey of the Taurus-Auriga-Perseus complex. These H2…

Astrophysics · Physics 2009-06-23 C. J. Davis , P. Scholz , P. Lucas , M. D. Smith , A. Adamson

To reveal the origins of diffuse H-alpha emissions observed around the Herbig star MWC 1080, we have performed a high-resolution near-infrared (NIR) spectroscopic observation using the Immersion GRating INfrared Spectrograph (IGRINS). In…

Astrophysics of Galaxies · Physics 2021-06-30 Il-Joong Kim , Heeyoung Oh , Woong-Seob Jeong , Kwang-Il Seon , Tae-Soo Pyo , Jae-Joon Lee

Massive stars form deeply embedded in their parental clouds, making it challenging to directly observe these stars and their immediate environments. It is known that accretion and ejection processes are intrinsically related, thus observing…

Solar and Stellar Astrophysics · Physics 2022-07-20 A. R. Costa Silva , R. Fedriani , J. C. Tan , A. Caratti o Garatti , S. Ramsay , V. Rosero , G. Cosentino , P. Gorai , S. Leurini

We present results of continuum and spectral line observations with ALMA and 22 GHz water (H$_2$O) maser observations using KaVA and VERA toward a high-mass star-forming region, G25.82-0.17. Multiple 1.3 mm continuum sources are revealed,…

We have observed the central region of the IR-dark cloud filament associated with IRAS 18507+0121 at millimeter wavelengths in CO(1-0), 13CO(1-0), and C18O(1-0) line emission and with the Spitzer Space Telescope at mid-IR wavelengths. Five…