scholarly journals Studying the Dynamics of Star Forming and IR Luminous Galaxies with Infrared Spectroscopy

2006 ◽  
pp. 74-84
Author(s):  
Reinhard Genzel ◽  
Linda J. Tacconi ◽  
Marco Barden ◽  
Matthew D. Lehnert ◽  
Dieter Lutz ◽  
...  
Keyword(s):  
Infrared Spectroscopy ◽  
Star Forming ◽  
Luminous Galaxies

scholarly journals MOIRCS DEEP SURVEY. VI. NEAR-INFRARED SPECTROSCOPY OFK-SELECTED STAR-FORMING GALAXIES ATz∼ 2

2010 ◽  
Vol 718 (1) ◽  
pp. 112-132 ◽  
Author(s):  
Tomohiro Yoshikawa ◽  
Masayuki Akiyama ◽  
Masaru Kajisawa ◽  
David M. Alexander ◽  
Kouji Ohta ◽  
...  
Keyword(s):  
Infrared Spectroscopy ◽  
Near Infrared Spectroscopy ◽  
Near Infrared ◽  
Star Forming ◽  
Deep Survey

scholarly journals Multiwavelength investigation of extended green object G19.88-0.53: revealing a protocluster

2020 ◽  
Vol 497 (4) ◽  
pp. 5454-5472
Author(s):  
Namitha Issac ◽  
Anandmayee Tej ◽  
Tie Liu ◽  
Watson Varricatt ◽  
Sarita Vig ◽  
...  
Keyword(s):  
Infrared Spectroscopy ◽  
Star Formation ◽  
Near Infrared Spectroscopy ◽  
Near Infrared ◽  
High Mass ◽  
Mass Star ◽  
Star Forming ◽  
Gas Kinematics ◽  
Evolutionary Spectrum ◽  
Multiple Shock

ABSTRACT A multiwavelength analysis of star formation associated with the extended green object, G19.88-0.53 is presented in this paper. With multiple detected radio and millimetre components, G19.88-0.53 unveils as harbouring a protocluster rather than a single massive young stellar object. We detect an ionized thermal jet using the upgraded Giant Meterwave Radio Telescope, India, which is found to be associated with a massive, dense and hot ALMA 2.7 mm core driving a bipolar CO outflow. Near-infrared spectroscopy with UKIRT–UIST shows the presence of multiple shock-excited H2 lines concurrent with the nature of this region. Detailed investigation of the gas kinematics using ALMA data reveals G19.88-0.53 as an active protocluster with high-mass star-forming components spanning a wide evolutionary spectrum from hot cores in accretion phase to cores driving multiple outflows to possible UCH ii regions.

scholarly journals Mid-Infrared Spectroscopy of Infrared-Luminous Galaxies with Subarcsecond Resolution

2002 ◽  
Vol 124 (5) ◽  
pp. 2980-2989 ◽  
Author(s):  
B. T. Soifer ◽  
G. Neugebauer ◽  
K. Matthews ◽  
E. Egami ◽  
A. J. Weinberger
Keyword(s):  
Infrared Spectroscopy ◽  
Mid Infrared ◽  
Mid Infrared Spectroscopy ◽  
Luminous Galaxies

scholarly journals A Herschel Survey of the [N ii] 205 μm Emission in Local Infrared Luminous Galaxies

2012 ◽  
Vol 8 (S292) ◽  
pp. 256-256
Author(s):  
Yinghe Zhao ◽  
Nanyao Lu ◽  
C. Kevin Xu ◽  
Yu Gao ◽  
Keyword(s):  
Statistical Study ◽  
Star Formation Rate ◽  
Formation Rate ◽  
Line Emission ◽  
Infrared Galaxies ◽  
Star Forming ◽  
Luminous Infrared Galaxies ◽  
High Ionization ◽  
Luminous Galaxies ◽  
Ionization Parameter

AbstractThe [N ii] line is a major coolant in ionized interstellar medium, and is expected to be a good star formation rate indicator. Here we present a statistical study of [N ii] line emission for a large sample of local luminous infrared galaxies (LIRGs) using Herschel SPIRE FTS data (Lu et al. 2012; Zhao et al. 2012, in preparation). For our sample of galaxies, the [N ii] to the total infrared luminosity ratio (L[Nii]/LIR) varies from ∼ 10−5 to ∼ 10−4. We investigate the correlation between L[Nii] and LIR, as well as the dependence of L[Nii]/LIR on LIR, infrared colors (f60/f100) and the OIII 88 μm to [N ii] luminosity ratio. We find that L[Nii] strongly, and almost linearly correlates with LIR for star-forming galaxies, namely log LIR = (4.23 ± 0.33) + (0.99 ± 0.05) log L[NII] (see Fig. 1). The scatter in this relation is mainly due to the variation of hardness, and/or high ionization parameter, of the background UV field.

Si and Fe Depletion in Star-forming Regions Probed by Infrared Spectroscopy

2008 ◽  
pp. 366-366
Author(s):  
Yoko Okada ◽  
Takashi Onaka ◽  
Takashi Miyata ◽  
Itsuki Sakon ◽  
Hidenori Takahashi ◽  
...  
Keyword(s):  
Infrared Spectroscopy ◽  
Star Forming ◽  
Star Forming Regions

ERRATUM: “SPITZERMID-INFRARED SPECTROSCOPY OF INFRARED LUMINOUS GALAXIES ATz∼ 2. II. DIAGNOSTICS” (2007, ApJ, 664, 713)

2010 ◽  
Vol 715 (2) ◽  
pp. 1592-1592
Author(s):  
Anna Sajina ◽  
Lin Yan ◽  
Lee Armus ◽  
Philip Choi ◽  
Dario Fadda ◽  
...  
Keyword(s):  
Infrared Spectroscopy ◽  
Luminous Galaxies

scholarly journals SpitzerMid‐Infrared Spectroscopy of Infrared Luminous Galaxies atz∼ 2. III. Far‐IR to Radio Properties and Optical Spectral Diagnostics

2008 ◽  
Vol 683 (2) ◽  
pp. 659-682 ◽  
Author(s):  
Anna Sajina ◽  
Lin Yan ◽  
Dieter Lutz ◽  
Aaron Steffen ◽  
George Helou ◽  
...  
Keyword(s):  
Infrared Spectroscopy ◽  
Spectral Diagnostics ◽  
Luminous Galaxies

scholarly journals Very Deep Surveys

1998 ◽  
Vol 11 (2) ◽  
pp. 1125-1127
Author(s):  
Y. Taniguchi
Keyword(s):  
Observational Studies ◽  
Near Infrared ◽  
Local Density ◽  
Low Mass Stars ◽  
Mid Infrared ◽  
Star Forming ◽  
Luminous Galaxies ◽  
Deep Survey ◽  
Nearby Galaxies ◽  
Low Mass

When and how did galaxies form? In order to understand this important problem in astrophysics, many observational studies have been conducted so far. Deep survey observations in the optical are powerful for detecting very faint sources in the high-z universe The observed surface density of such high-z star forming galaxies may, however, be smaller than the value expected from the local density of luminous galaxies (e.g., Lanzetta et al. 1996; Steidel et al. 1996) and it is possible that we are missing classes of objects with substantial reddening and have not yet sampled fully the high-z counterparts of typical nearby galaxies. Since the nearby, well evolved galaxies consist of old low-mass stars, it is important to find galaxies with numerous low-mass stars. These stars emit their energy from the optical to near infrared (NIR) mostly, implying that they are more luminous in the NIR and MIR (mid-infrared) than in the optical if they were present at high redshifts.

scholarly journals SpitzerMid‐Infrared Spectroscopy of Infrared Luminous Galaxies atz∼ 2. I. The Spectra

2007 ◽  
Vol 658 (2) ◽  
pp. 778-793 ◽  
Author(s):  
Lin Yan ◽  
Anna Sajina ◽  
Dario Fadda ◽  
Phil Choi ◽  
Lee Armus ◽  
...  
Keyword(s):  
Infrared Spectroscopy ◽  
Luminous Galaxies

scholarly journals Mid-infrared spectroscopy of infrared-luminous galaxies atz∼ 0.5-3

2009 ◽  
Vol 395 (3) ◽  
pp. 1695-1722 ◽  
Author(s):  
A. Hernán-Caballero ◽  
I. Pérez-Fournon ◽  
E. Hatziminaoglou ◽  
A. Afonso-Luis ◽  
M. Rowan-Robinson ◽  
...  
Keyword(s):  
Infrared Spectroscopy ◽  
Mid Infrared ◽  
Mid Infrared Spectroscopy ◽  
Luminous Galaxies
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