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We present the discovery of a spatially unresolved source of sub-millimeter continuum emission ($\lambda=855$ $\mu$m) associated with a young planet, PDS 70 c, recently detected in H$\alpha$ emission around the 5 Myr old T Tauri star PDS…

Earth and Planetary Astrophysics · Physics 2019-07-17 Andrea Isella , Myriam Benisty , Richard Teague , Jaehan Bae , Miriam Keppler , Stefano Facchini , Laura M Pérez

We present APEX-LABOCA 870 micron observations of the fields surrounding the nine brightest, high-redshift, unlensed objects discovered in the South Pole Telescope's (SPT) 2500 square degrees survey. Initially seen as point sources by SPT's…

We want to estimate the distance to molecular clouds in the solar vicinity in a statistically precise way. Clouds are recognized as extinction discontinuities. The extinction is estimated from the $(H-K) \ vs. \ (J-H)$ diagram and distances…

Astrophysics of Galaxies · Physics 2010-06-21 Jens Knude

We report the discovery of a massive SCUBA core with evidence of inflow and outflow motions. This core is detected by SCUBA at both 450 and 850 micro meter. Barely resolved by the telescope beam at 450 micro meter, it has a size of 10…

Astrophysics · Physics 2009-11-11 Y. Wu , M. Zhu , Y. Wei , D. Xu , Q. Zhang , J. D. Fiege

We present ALMA 850 $\mu$m continuum observations of the Orion Nebula Cluster that provide the highest angular resolution ($\sim 0\rlap{.}''1 \approx 40$ AU) and deepest sensitivity ($\sim 0.1$ mJy) of the region to date. We mosaicked a…

We investigate the shape of the extinction law in two 1-degree square fields of the Perseus Molecular Cloud complex. We combine deep red-optical (r, i, and z-band) observations obtained using Megacam on the MMT with UKIDSS near-infrared (J,…

Astrophysics of Galaxies · Physics 2015-06-11 Jonathan B. Foster , Kaisey S. Mandel , Jaime E. Pineda , Kevin R. Covey , Héctor G. Arce , Alyssa A. Goodman

We present the first release of the data and compact-source catalogue for the JCMT Large Program SCUBA-2 Continuum Observations of Pre-protostellar Evolution (SCOPE). SCOPE consists of 850-um continuum observations of 1235 Planck Galactic…

Astrophysics of Galaxies · Physics 2019-03-06 D. J. Eden , Tie Liu , Kee-Tae Kim , S. -Y. Liu , K. Tatematsu , J. Di Francesco , K. Wang , Y. Wu , M. A. Thompson , G. A. Fuller , Di Li , I. Ristorcelli , Sung-ju Kang , N. Hirano , D. Johnstone , Y. Lin , J. H. He , P. M. Koch , Patricio Sanhueza , S. -L. Qin , Q. Zhang , P. F. Goldsmith , N. J. Evans , J. Yuan , C. -P. Zhang , G. J. White , Minho Choi , Chang Won Lee , L. V. Toth , S. Mairs , H. -W. Yi , M. Tang , A. Soam , N. Peretto , M. R. Samal , M. Fich , H. Parsons , J. Malinen , G. J. Bendo , A. Rivera-Ingraham , H. -L. Liu , J. Wouterloot , P. S. Li , L. Qian , J. Rawlings , M. G. Rawlings , S. Feng , B. Wang , Dalei Li , M. Liu , G. Luo , A. P. Marston , K. M. Pattle , V. -M. Pelkonen , A. J. Rigby , S. Zahorecz , G. Zhang , R. Bogner , Y. Aikawa , S. Akhter , D. Alina , G. Bell , J. -P. Bernard , A. Blain , L. Bronfman , D. -Y. Byun , S. Chapman , H. -R. Chen , M. Chen , W. -P. Chen , X. Chen , Xuepeng Chen , A. Chrysostomou , Y. -H. Chu , E. J. Chung , D. Cornu , G. Cosentino , M. R. Cunningham , K. Demyk , E. Drabek-Maunder , Y. Doi , C. Eswaraiah , E. Falgarone , O. Feher , H. Fraser , P. Friberg , G. Garay , J. X. Ge , W. K. Gear , J. Greaves , X. Guan , L. Harvey-Smith , T. Hasegawa , Y. He , C. Henkel , T. Hirota , W. Holland , A. Hughes , E. Jarken , T. -G. Ji , I. Jimenez-Serra , Miju Kang , K. S. Kawabata , Gwanjeong Kim , Jungha Kim , Jongsoo Kim , S. Kim , B. -C. Koo , Woojin Kwon , Y. -J. Kuan , K. M. Lacaille , S. -P. Lai , C. F. Lee , J. E. Lee , Y. -U. Lee , H. Li , N. Lo , J. A. P. Lopez , X. Lu , A. -R. Lyo , D. Mardones , P. McGehee , F. Meng , L. Montier , J. Montillaud , T. J. T. Moore , O. Morata , G. H. Moriarty-Schieven , S. Ohashi , S. Pak , Geumsook Park , R. Paladini , G. Pech , K. Qiu , Z. -Y. Ren , J. Richer , T. Sakai , H. Shang , H. Shinnaga , D. Stamatellos , Y. -W. Tang , A. Traficante , C. Vastel , S. Viti , A. Walsh , H. Wang , J. Wang , D. Ward-Thompson , A. Whitworth , C. D. Wilson , Y. Xu , J. Yang , Y. -L. Yuan , L. Yuan , A. Zavagno , C. Zhang , G. Zhang , H. -W. Zhang , C. Zhou , J. Zhou. L. Zhu , P. Zuo

In the list of young stellar objects compiled by Megeath et al. (2012) for the Orion A molecular cloud, only 44 out of 1208 sources found projected onto low extinction (Ak<0.8 mag) gas are identified as protostars. These objects are…

Astrophysics of Galaxies · Physics 2016-07-13 John Arban Lewis , Charles J Lada

We use Hubble Space Telescope (HST) observations of red clump stars taken as part of the Small Magellanic Cloud Investigation of Dust and Gas Evolution (SMIDGE) program to measure the average dust extinction curve in a ~ 200 pc x 100 pc…

We present an analysis of IRAS maps of five molecular clouds: Orion, Ophiuchus, Perseus, Taurus, and Lupus. For the classification and description of these astrophysical maps, we use a newly developed technique which considers all maps of a…

Astrophysics · Physics 2009-10-22 Jennifer J. Wiseman , Fred C. Adams

We present a near-infrared extinction map of a large region (approximately 2200 deg^2) covering the Orion, the Monoceros R2, the Rosette, and the Canis Major molecular clouds. We used robust and optimal methods to map the dust column…

Astrophysics of Galaxies · Physics 2015-05-28 Marco Lombardi , Joao Alves , Charles lada

We present a 8 deg x 6 deg, high resolution extinction map of the Pipe nebula using 4.5 million stars from the Two Micron All Sky Survey (2MASS) point source catalog. The use of NICER, a robust and optimal technique to map the dust column…

Astrophysics · Physics 2009-11-11 Marco Lombardi , Joao Alves , Charles J. Lada

We have performed an optical spectroscopic and photometric search for young stellar objects associated with the molecular cloud Lynds 1340, and examined the structure of the cloud by constructing an extinction map, based on SDSS data. The…

Solar and Stellar Astrophysics · Physics 2016-06-09 M. Kun , A. Moór , E. Szegedi-Elek , B. Reipurth

We present the discovery of a molecular cloud at zabs=2.5255 along the line of sight to the quasar J0000+0048. We perform a detailed analysis of the absorption lines from ionic, neutral atomic and molecular species in different excitation…

We report the detection of an excess in dust continuum emission at 233~GHz (1.3~mm in wavelength) in the protoplanetary disk around TW~Hya revealed through high-sensitivity observations at $\sim$3~au resolution with the Atacama Large…

Thermal emission from cold dust grains in giant molecular clouds can be used to probe the physical properties, such as density, temperature and emissivity in star-forming regions. We present the SCUBA-2 shared-risk observations at 450…

Astrophysics of Galaxies · Physics 2016-02-17 S. Coudé , P. Bastien , H. Kirk , D. Johnstone , E. Drabek-Maunder , S. Graves , J. Hatchell , E. L. Chapin , A. G. Gibb , B. Matthews

The nature of far-infrared dust emission toward main sequence stars, whether interstellar or circumstellar, can be deduced from submillimeter photometry. We present JCMT/SCUBA flux measurements at 850 microns toward 8 stars with large…

Astrophysics · Physics 2008-11-26 Jonathan P. Williams , Sean M. Andrews

Herschel observations of nearby clouds in the Gould Belt support a paradigm for low-mass star formation, starting with the generation of molecular filaments, followed by filament fragmentation, and the concentration of mass into…

We present the result of an unbiased CO survey in Galactic range of 34.75$^{\circ}\leq$l$\leq$ 45.25$^{\circ}$ and -5.25$^{\circ}\leq$b$\leq$ 5.25$^{\circ}$, and velocity range beyond the Outer arm. A total of 168 molecular clouds (MCs) are…

Astrophysics of Galaxies · Physics 2017-06-21 Yan Sun , Yang Su , Shao-Bo Zhang , Ye Xu , Xue-Peng Chen , Ji Yang , Zhi-Bo Jiang , Min Fang

We report Submillimeter Array dust continuum and molecular spectral line observations toward the Orion Bar photon-dominated region (PDR). The 1.2 mm continuum map reveals, for the first time, a total of 9 compact (r < 0.01pc) dust…

Solar and Stellar Astrophysics · Physics 2018-03-08 Keping Qiu , Zeqiang Xie , Qizhou Zhang