Self-regulated cooling flows in elliptical galaxies and in cluster cores - Is exclusively low mass star formation really necessary?

1987 ◽

Vol 127 ◽

pp. 445-446

Author(s):

G. Gilmore ◽

K. Arnaud

Keyword(s):

Star Formation ◽

Luminosity Function ◽

Mass Function ◽

Elliptical Galaxies ◽

Solar Neighbourhood ◽

Mass Star ◽

Luminosity Functions ◽

Central Regions ◽

Low Mass

SummaryWe present a determination of the stellar luminosity function in luminous elliptical galaxies which includes all stars more massive than 0.15 M⊙. This limit corresponds to masses beyond the maximum in the solar neighbourhood stellar mass function, and therefore includes effectively all the luminous mass. Galaxies with X-ray evidence for current massive star formation, also show no evidence for enhanced low mass star formation in their central regions. All elliptical galaxies studied to date have stellar luminosity functions for masses above 0.15 solar masses which do not differ significantly from that in the solar neighbourhood. Elliptical galaxies have stellar bolometric mass-to-light ratios of 2.5< M/L <5.0.

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Low‐Mass Star Formation and the Initial Mass Function in IC 348

The Astrophysical Journal ◽

10.1086/306393 ◽

1998 ◽

Vol 508 (1) ◽

pp. 347-369 ◽

Cited By ~ 121

Author(s):

K. L. Luhman ◽

G. H. Rieke ◽

C. J. Lada ◽

E. A. Lada

Keyword(s):

Star Formation ◽

Mass Function ◽

Initial Mass Function ◽

Initial Mass ◽

Mass Star ◽

Low Mass

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The effect of episodic accretion on the phase transition of CO and CO2in low-mass star formation

Astronomy and Astrophysics ◽

10.1051/0004-6361/201321775 ◽

2013 ◽

Vol 557 ◽

pp. A35 ◽

Cited By ~ 29

Author(s):

Eduard I. Vorobyov ◽

Isabelle Baraffe ◽

Tim Harries ◽

Gilles Chabrier

Keyword(s):

Phase Transition ◽

Star Formation ◽

Mass Star ◽

Low Mass

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FEEDBACK EFFECTS ON LOW-MASS STAR FORMATION

The Astrophysical Journal ◽

10.1088/0004-637x/747/1/22 ◽

2012 ◽

Vol 747 (1) ◽

pp. 22 ◽

Cited By ~ 62

Author(s):

Charles E. Hansen ◽

Richard I. Klein ◽

Christopher F. McKee ◽

Robert T. Fisher

Keyword(s):

Star Formation ◽

Mass Star ◽

Feedback Effects ◽

Low Mass

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Submillimeter Array Observations of Magnetic Fields in Star Forming Regions

Proceedings of the International Astronomical Union ◽

10.1017/s174392131100024x ◽

2010 ◽

Vol 6 (S270) ◽

pp. 103-106

Author(s):

R. Rao ◽

J.-M. Girart ◽

D. P. Marrone

Keyword(s):

Magnetic Field ◽

Star Formation ◽

Magnetic Fields ◽

Computational Models ◽

Dominant Role ◽

Theoretical Models ◽

Mass Star ◽

Star Forming ◽

Star Forming Regions ◽

Low Mass

AbstractThere have been a number of theoretical and computational models which state that magnetic fields play an important role in the process of star formation. Competing theories instead postulate that it is turbulence which is dominant and magnetic fields are weak. The recent installation of a polarimetry system at the Submillimeter Array (SMA) has enabled us to conduct observations that could potentially distinguish between the two theories. Some of the nearby low mass star forming regions show hour-glass shaped magnetic field structures that are consistent with theoretical models in which the magnetic field plays a dominant role. However, there are other similar regions where no significant polarization is detected. Future polarimetry observations made by the Submillimeter Array should be able to increase the sample of observed regions. These measurements will allow us to address observationally the important question of the role of magnetic fields and/or turbulence in the process of star formation.

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