Star formation in blue galaxies. I - Ultraviolet, optical, and infrared observations of NGC 4214 and NGC 4670

1983 ◽  
Vol 274 ◽  
pp. 125 ◽  
Author(s):  
J. P. Huchra ◽  
M. J. Geller ◽  
J. Gallagher ◽  
D. Hunter ◽  
L. Hartmann ◽  
...  
Keyword(s):  
Star Formation ◽  
Infrared Observations ◽  
Blue Galaxies

scholarly journals Determination of Young Population Ages in Cluster Galaxies

1995 ◽  
Vol 164 ◽  
pp. 460-460
Author(s):  
B.M. Poggianti ◽  
G. Barbaro
Keyword(s):  
Star Formation ◽  
Young Stars ◽  
Young Population ◽  
Cluster Galaxies ◽  
Blue Galaxies

The “Butcher–Oemler” effect was originally defined as the excess of blue galaxies observed in distant rich clusters when compared to local counterparts. Subsequent observations revealed that a larger fraction of objects in clusters between 0.1 < z < 1 show signs in their spectra of the presence of young stars, i.e. of a recent (during the last 2 Gyrs) or current burst of star formation.

scholarly journals The Evolution of Luminous Compact Blue Galaxies: Disks or Spheroids?

2010 ◽  
Vol 6 (S277) ◽  
pp. 291-295
Author(s):  
D. J. Pisano ◽  
K. Rabidoux ◽  
C. A. Garland ◽  
R. Guzmán ◽  
F. J. Castander ◽  
...  
Keyword(s):  
Star Formation ◽  
High Redshift ◽  
High Surface ◽  
Blue Color ◽  
Dynamical Mass ◽  
Star Forming ◽  
Blue Galaxies ◽  
Multi Wavelength ◽  
Fisher Relation ◽  
Combined Data

AbstractLuminous compact blue galaxies (LCBGs) are a diverse class of galaxies characterized by high luminosity, blue color, and high surface brightness that sit at the critical juncture of galaxies evolving from the blue to the red sequence. As part of our multi-wavelength survey of local LCBGs, we have been studying the HI content of these galaxies using both single-dish telescopes and interferometers. Our goals are to determine if single-dish HI observations represent a true measure of the dynamical mass of LCBGs and to look for signatures of recent interactions that may be triggering star formation in LCBGs. Our data show that while some LCBGs are undergoing interactions, many appear isolated. While all LCBGs contain HI and show signatures of rotation, the population does not lie on the Tully-Fisher relation nor can it evolve onto it. Furthermore, the HI maps of many LCBGs show signatures of dynamically hot components, suggesting that we are seeing the formation of a thick disk or spheroid in at least some LCBGs. There is good agreement between the HI and Hα kinematics for LCBGs, and both are similar in appearance to the Hα kinematics of high redshift star-forming galaxies. Our combined data suggest that star formation in LCBGs is primarily quenched by virial heating, consistent with model predictions.

Star-formation rates and forbidden O II emission in blue galaxies

1989 ◽  
Vol 97 ◽  
pp. 700 ◽  
Author(s):  
J. S. Gallagher ◽  
D. A. Hunter ◽  
H. Bushouse
Keyword(s):  
Star Formation ◽  
Blue Galaxies

Star formation in blue galaxies

1977 ◽  
Vol 217 ◽  
pp. 928 ◽  
Author(s):  
J. P. Huchra
Keyword(s):  
Star Formation ◽  
Blue Galaxies

Testing models of low-mass star formation - High-resolution far-infrared observations of L1551 IRS 5

1991 ◽  
Vol 376 ◽  
pp. 636 ◽  
Author(s):  
Harold M. Butner ◽  
Neal J., II Evans ◽  
Daniel F. Lester ◽  
Russell M. Levreault ◽  
Stephen E. Strom
Keyword(s):  
Star Formation ◽  
High Resolution ◽  
Far Infrared ◽  
Mass Star ◽  
Infrared Observations ◽  
Low Mass

Star formation at a front - Far-infrared observations of AFGL 333

1979 ◽  
Vol 229 ◽  
pp. L133 ◽  
Author(s):  
H. A., Jr. Thronson ◽  
P. M. Harvey ◽  
I. Gatley
Keyword(s):  
Star Formation ◽  
Far Infrared ◽  
Infrared Observations

scholarly journals Star Formation in Outer Galaxy Molecular Clouds

1987 ◽  
Vol 115 ◽  
pp. 483-494
Author(s):  
Marc L. Kutner
Keyword(s):  
Star Formation ◽  
Molecular Clouds ◽  
Far Infrared ◽  
B Stars ◽  
Infrared Observations

A variety of observations of molecular clouds outside the solar circle (mostly around R = 14 kpc) are reported. Maps of CO, 13CO (J = 1 → 0) and CO (J = 2 → 1) emission are discussed. Cloud sizes and masses range up to the GMC class. However, envelope kinetic temperatures are lower than those in GMCs in the molecular ring. Continuum observations, using the VLA at 6 cm and 20 cm, and far infrared observations, taken on the Kuiper Airborne Observatory, suggest the presence of newly formed late O and early B stars.

scholarly journals The Morphological Evolution of Field Galaxies

1995 ◽  
Vol 164 ◽  
pp. 291-300
Author(s):  
Richard S. Ellis
Keyword(s):  
Star Formation ◽  
Luminosity Function ◽  
Morphological Evolution ◽  
Morphological Type ◽  
Physical Explanation ◽  
Normal Field ◽  
Hubble Sequence ◽  
Blue Galaxies ◽  
Intense Star Formation

I review two observational programs which, together, promise to unravel the detailed astrophysical evolution of normal field galaxies over the last 5-7 Gyr. Systematic ground-based spectroscopy of faint galaxies have revealed an increasing faint end slope for the luminosity function with redshift. The trend is strongest for galaxies undergoing intense star-formation. Deep images taken with the repaired HST can be used to count galaxies as a function of morphological type. Regular “Hubble sequence” galaxies follow the no-evolution prediction, but irregular/peculiar sources have a steeper count slope and provide the excess population. Although the overlap between the spectral and HST samples is currently small, plans to merge similar datasets should reveal the physical explanation for the demise of star formation in faint blue galaxies since z ≃0.5-l.

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