Star formation thresholds derived from THINGS

F. Bigiel; F. Walter; E. De Blok; E. Brinks; B. Madore

doi:10.1017/S1743921307001858

Star formation thresholds derived from THINGS

F. Bigiel^*, F. Walter, E. De Blok, E. Brinks, B. Madore

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

Abstract

We present first results from THINGS (The HI Nearby Galaxy Survey), which consists of high quality HI maps obtained with the VLA of 34 galaxies across a wide range of galaxy parameters (Hubble type, mass/luminosity). We compare the distribution of HI to the UV emission in our sample galaxies. In particular we present radial profiles of the HI (tracing the neutral interstellar medium) and UV (mainly tracing regions of recent star formation) in our sample galaxies. The azimuthally averaged HI profiles are compared to the predicted critical density above which organized large-scale star formation is believed to start (this threshold is based on the Toomre-Q parameter, which in turn is a measure for local gravitational instability).

Original language	English
Pages (from-to)	397
Number of pages	1
Journal	Proceedings of the International Astronomical Union
Volume	2
Issue number	S237
DOIs	https://doi.org/10.1017/S1743921307001858
Publication status	Published - Aug 2006

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10.1017/S1743921307001858

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title = "Star formation thresholds derived from THINGS",

abstract = "We present first results from THINGS (The HI Nearby Galaxy Survey), which consists of high quality HI maps obtained with the VLA of 34 galaxies across a wide range of galaxy parameters (Hubble type, mass/luminosity). We compare the distribution of HI to the UV emission in our sample galaxies. In particular we present radial profiles of the HI (tracing the neutral interstellar medium) and UV (mainly tracing regions of recent star formation) in our sample galaxies. The azimuthally averaged HI profiles are compared to the predicted critical density above which organized large-scale star formation is believed to start (this threshold is based on the Toomre-Q parameter, which in turn is a measure for local gravitational instability).",

keywords = "Galaxies: evolution, Galaxies: ISM, Radio lines: ISM",

author = "F. Bigiel and F. Walter and {De Blok}, E. and E. Brinks and B. Madore",

year = "2006",

month = aug,

doi = "10.1017/S1743921307001858",

language = "English",

volume = "2",

pages = "397",

journal = "Proceedings of the International Astronomical Union",

issn = "1743-9213",

publisher = "Cambridge University Press",

number = "S237",

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TY - JOUR

T1 - Star formation thresholds derived from THINGS

AU - Bigiel, F.

AU - Walter, F.

AU - De Blok, E.

AU - Brinks, E.

AU - Madore, B.

PY - 2006/8

Y1 - 2006/8

N2 - We present first results from THINGS (The HI Nearby Galaxy Survey), which consists of high quality HI maps obtained with the VLA of 34 galaxies across a wide range of galaxy parameters (Hubble type, mass/luminosity). We compare the distribution of HI to the UV emission in our sample galaxies. In particular we present radial profiles of the HI (tracing the neutral interstellar medium) and UV (mainly tracing regions of recent star formation) in our sample galaxies. The azimuthally averaged HI profiles are compared to the predicted critical density above which organized large-scale star formation is believed to start (this threshold is based on the Toomre-Q parameter, which in turn is a measure for local gravitational instability).

AB - We present first results from THINGS (The HI Nearby Galaxy Survey), which consists of high quality HI maps obtained with the VLA of 34 galaxies across a wide range of galaxy parameters (Hubble type, mass/luminosity). We compare the distribution of HI to the UV emission in our sample galaxies. In particular we present radial profiles of the HI (tracing the neutral interstellar medium) and UV (mainly tracing regions of recent star formation) in our sample galaxies. The azimuthally averaged HI profiles are compared to the predicted critical density above which organized large-scale star formation is believed to start (this threshold is based on the Toomre-Q parameter, which in turn is a measure for local gravitational instability).

KW - Galaxies: evolution

KW - Galaxies: ISM

KW - Radio lines: ISM

UR - http://www.scopus.com/inward/record.url?scp=37048999768&partnerID=8YFLogxK

U2 - 10.1017/S1743921307001858

DO - 10.1017/S1743921307001858

M3 - Article

AN - SCOPUS:37048999768

SN - 1743-9213

VL - 2

SP - 397

JO - Proceedings of the International Astronomical Union

JF - Proceedings of the International Astronomical Union

IS - S237

ER -

Star formation thresholds derived from THINGS

Abstract

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