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The decimetric radio continuum luminosity of a star-forming galaxy appears to be directly proportional to the rate of formation of supernovae in the galaxy. Since decimetric radiation does not suffer significant extinction and is not…

Astrophysics · Physics 2009-09-28 L. Cram , A. Hopkins , B. Mobasher , M. Rowan-Robinson

We explore the evolution of the Stellar Mass-Star Formation Rate-Metallicity Relation using a set of 256 COSMOS and GOODS galaxies in the redshift range 1.90 < z < 2.35. We present the galaxies' rest-frame optical emission-line fluxes…

We present large-scale trends in the distribution of star-forming objects revealed by the Hi-GAL survey. As a simple metric probing the prevalence of star formation in Hi-GAL sources, we define the fraction of the total number of Hi-GAL…

Astrophysics of Galaxies · Physics 2016-08-31 S. E. Ragan , T. J. T. Moore , D. J. Eden , M. G. Hoare , D. Elia , S. Molinari

We study the young star cluster populations in 23 dwarf and irregular galaxies observed by the HST Legacy ExtraGalactic Ultraviolet Survey (LEGUS), and examine relationships between the ensemble properties of the cluster populations and…

We present measurements of the specific star-formation rate (SSFR)-stellar mass relation for star-forming galaxies. Our deep spectroscopic samples are based on the Redshift One LDSS3 Emission line Survey, ROLES, and European Southern…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-27 David G. Gilbank , Richard G. Bower , Karl Glazebrook , Michael L. Balogh , I. K. Baldry , G. T. Davies , G. K. T. Hau , I. H. Li , P. McCarthy , M. Sawicki

The star formation main sequence (SFMS) is a tight relation between the galaxy star formation rate (SFR) and its total stellar mass ($M_\star$). Early-type galaxies (ETGs) are often considered as low-SFR outliers of this relation. We study,…

Astrophysics of Galaxies · Physics 2019-07-17 J. Mendez-Abreu , S. F. Sanchez , A. de Lorenzo-Caceres

We have developed a simple, static model designed to place a very solid lower limit on the star formation rate (SFR) expected in a dwarf disk galaxy, which leads to the prediction of a previously undocumented relation between HI mass, M_HI,…

Astrophysics · Physics 2007-05-23 Edward N Taylor

The dispersion of the star-formation main sequence (SFMS) reflects the diversity of star formation histories and variation in star formation rates (SFRs) in star-forming galaxies (SFGs) with similar stellar masses ($M^\ast$). We examine the…

Astrophysics of Galaxies · Physics 2015-08-06 Kexin Guo , Xian Zhong Zheng , Tao Wang , Hai Fu

We used three indicators of massive star formation: $H_{\alpha}$, FIR and non-thermal radio luminosities, to compare estimations of Star Formation Rate (SFR) for the sample of 34 spiral galaxies. To adjust SFR values, obtained from…

Astrophysics · Physics 2009-10-31 D. V. Bizyaev

In the Local Group spiral galaxy M33, we investigate the correlation between the star formation rate (SFR) surface density, Sigma_SFR, and the gas density Sigma_gas (molecular, atomic, and total). We also explore whether there are other…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 S. Verley , E. Corbelli , C. Giovanardi , L. K. Hunt

Based on CHANDRA observations of nearby starburst galaxies and RXTE/ASM, ASCA and MIR-KVANT/TTM studies of high mass X-ray binary (HMXB) populations in the Milky Way and Magellanic Clouds, we propose that the number and/or the collective…

Astrophysics · Physics 2009-11-07 H. -J. Grimm , M. Gilfanov , R. Sunyaev

We present the observed H$\alpha$ flux and derived star formation rates (SFRs) for a fall sample of low$-$surface$-$brightness galaxies (LSBGs). The sample is selected from the fall sky region of the 40$\%$ ALFALFA {\ion{H}{1}} survey $-$…

Using the optical data from the Wide component of the CFHT Legacy Survey, and new ultraviolet data from GALEX, we study the colours and specific star formation rates (SSFR) of ~100 galaxy clusters at 0.16<z<0.36, over areas extending out to…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-30 Ting Lu , David Gilbank , Sean McGee , Michael Balogh , Sarah Gallagher

We use empirical star formation histories (SFHs), measured from HST-based resolved star color-magnitude diagrams, as input into population synthesis codes to model the broadband spectral energy distributions (SEDs) of ~50 nearby dwarf…

Measurements of H-alpha, HI, and CO distributions in 61 normal spiral galaxies are combined with published far-infrared and CO observations of 36 infrared-selected starburst galaxies, in order to study the form of the global star formation…

Astrophysics · Physics 2012-08-27 Robert C. Kennicutt,

We present results from a deep mid-IR survey of the Hubble Deep Field South (HDF-S) region performed at 7 and 15um with the CAM instrument on board ISO. We found reliable optical/near-IR associations for 32 of the 35 sources detected in…

Observations have discovered numerous giant molecular filaments (GMFs) in the Milky Way. However, their role in the Galactic star formation and Galaxy-scale evolution of dense gas is still unknown. We investigate systematically the…

Astrophysics of Galaxies · Physics 2019-02-06 Miaomiao Zhang , Jouni Kainulainen , Michael Mattern , Min Fang , Thomas Henning

We present a new determination of the star-forming main sequence (MS), obtained through stacking 100k K-band-selected galaxies in the far-infrared (FIR) Herschel and James Clerk Maxwell Telescope (JCMT) imaging. By fitting the dust emission…

Astrophysics of Galaxies · Physics 2024-11-15 M. P. Koprowski , J. V. Wijesekera , J. S. Dunlop , D. J. McLeod , M. J. Michałowski , K. Lisiecki , R. J. McLure

We constrain the mass distribution in nearby, star-forming galaxies with the Star Formation Reference Survey (SFRS), a galaxy sample constructed to be representative of all known combinations of star formation rate (SFR), dust temperature,…

Star formation rate (SFR) is a fundamental parameter for describing galaxies and inferring their evolutionary course. HII regions yield the best measure of instantaneous SFR in galaxies, although the derived SFR can have large uncertainties…