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Related papers: An All-Sky Sample of Intermediate-Mass Star-Formin…

200 papers

We use a dense, complete redshift survey, the Smithsonian Hectospec Lensing Survey (SHELS), covering a 4 square degree region of a deep imaging survey, the Deep Lens Survey (DLS), to study the optical spectral properties of Wide-field…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-11 Ho Seong Hwang , Margaret J. Geller , Michael J. Kurtz , Ian P. Dell'Antonio , Daniel G. Fabricant

We analyze the embedded stellar content in the vicinity of the W3/W4/W5 HII regions using the FCRAO Outer Galaxy 12CO(J=1-0) Survey, the IRAS Point Source Catalog, published radio continuum surveys, and new near-infrared and molecular line…

Astrophysics · Physics 2009-10-31 John M. Carpenter , Mark H. Heyer , Ronald L. Snell

The outer Galaxy beyond the Outer Arm provides a good opportunity to study star formation in an environment significantly different from that in the solar neighborhood. However, star-forming regions in the outer Galaxy have never been…

Astrophysics of Galaxies · Physics 2017-12-07 Natsuko Izumi , Naoto Kobayashi , Chikako Yasui , Masao Saito , Satoshi Hamano

The intermediate- to high-mass star-forming region IRAS 20343+4129 is an excellent laboratory to study the influence of high- and intermediate-mass young stellar objects on nearby starless dense cores, and investigate for possible…

Astrophysics of Galaxies · Physics 2015-06-04 F. Fontani , Aina Palau , G. Busquet , A. Isella , R. Estalella , A. Sanchez-Monge , P. Caselli , Q. Zhang

We present mid-infrared spectra of thirty two high redshift ultraluminous infrared galaxies, selected via the stellar photospheric feature at rest-frame 1.6um, and an observed-frame 24um flux of >500muJy. Nearly all the sample reside in a…

We present near-IR VLT/ISAAC and mid-IR Spitzer/IRS spectroscopy of the young massive cluster in the W31 star-forming region. H-band spectroscopy provides refined classifications for four cluster members O stars with respect to Blum et al.…

Solar and Stellar Astrophysics · Physics 2015-05-14 JP Furness , PA Crowther , PW Morris , CL Barbosa , RD Blum , PS Conti , SD van Dyk

Ever since their discovery, Infrared dark clouds (IRDCs) are generally considered to be the sites just at the onset of high-mass (HM) star formation. In recent years, it has been realized that not all IRDCs harbour HM Young Stellar Objects…

Astrophysics of Galaxies · Physics 2020-07-08 R. Retes-Romero , Y. D. Mayya , A. Luna , L. Carrasco

W5-E has been observed with the Herschel-PACS and -SPIRE photometers, at 100, 160, 250, 350, and 500 microns. The dust temperature map shows a rather uniform temperature, in the range 17.5-20 K in the dense condensations or filaments, 21-22…

Astrophysics of Galaxies · Physics 2015-06-11 L. Deharveng , A. Zavagno , L. D. Anderson , F. Motte , A. Abergel , Ph. Andre , S. Bontemps , G. Leleu , H. Roussel , D. Russeil

We study the star formation properties of 59 void galaxies as part of the Void Galaxy Survey (VGS). Current star formation rates are derived from $\rm{H\alpha}$ and recent star formation rates from near-UV imaging. In addition, infrared 3.4…

We present a catalogue of variable stars in the near-infrared wavelength detected with overlapping regions of the 2MASS public images, and discuss their properties. The investigated region is in the direction of the Galactic center (-30 < l…

Solar and Stellar Astrophysics · Physics 2014-11-20 Shinjirou Kouzuma , Hitoshi Yamaoka

We describe far infrared observations of early-type galaxies selected from the ISO archive. This rather inhomogeneous sample includes 39 giant elliptical galaxies and 14 S0 (or later) galaxies. These galaxies were observed using a variety…

Astrophysics · Physics 2016-08-30 Pasquale Temi , Fabrizio Brighenti , William G. Mathews , Jesse D. Bregman

We present an IR-monitoring survey with the $Spitzer$ Space Telescope of the star forming region GGD 12-15. Over 1000 objects were monitored including about 350 objects within the central 5 arcminutes which is found to be especially dense…

Early-type galaxies are considered to be the end-products of massive galaxy formation. Optical spectroscopic studies reveal that massive early-type galaxies formed the bulk of their stars over short timescales (1<Gyr) and at high redshift…

We have carried out near-infrared polarimetry toward the boundary of the Central Molecular Zone, in the field of (-1.4 deg $\lesssim l \lesssim$ -0.3 deg and 1.0 deg $\lesssim l \lesssim$ 2.9 deg, $|b|\lesssim$ 0.1 deg), using the…

Astrophysics of Galaxies · Physics 2015-06-19 Tatsuhito Yoshikawa , Shogo Nishiyama , Motohide Tamura , Jungmi Kwon , Tetsuya Nagata

We report here results from a Chandra ACIS observation of the stellar populations in and around the Messier 17 H II region. The field reveals 886 sources, 771 of which have stellar counterparts in infrared images. In addition to…

A multiwavelength study of the star forming regions associated with IRAS 19111+1048 and IRAS 19110+1045 has been carried out. These have been simultaneously mapped in two far infrared bands at lambda_eff ~ 130 and 200 micron with ~1'…

Astrophysics · Physics 2016-08-30 S. Vig , S. K. Ghosh , V. K. Kulkarni , D. K. Ojha , R. P. Verma

The Palomar Integral Field Spectrograph was used to probe a variety of environments in nine nearby galaxies that span a range of morphological types, luminosities, metallicities, and infrared-to-blue ratios. For the first time,…

Using the deep multi-wavelength MUSYC, GOODS, and FIRES surveys we construct a stellar mass-limited sample of galaxies at 2<z<3. The sample comprises 294 galaxies with M>10^11 Solar masses distributed over four independent fields with a…

We have used HST/NICMOS H-band narrow-band Pa-alpha (at rest 1.87micron) images to identify star clusters and HII regions respectively in a sample of 8 luminous infrared galaxies (LIRGs). These observations have revealed the presence of a…

Astrophysics · Physics 2009-11-07 Almudena Alonso-Herrero , George H. Rieke , Marcia J. Rieke

The Massive Young star-forming Complex Study in Infrared and X-rays (MYStIX) project requires samples of young stars that are likely members of 20 nearby Galactic massive star-forming regions. Membership is inferred from statistical…