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What role does Galactic structure play in star formation? We have used the Herschel Hi-GAL compact-clump catalogue to examine trends in evolutionary stage over large spatial scales in the inner Galaxy. We examine the relationship between…

Astrophysics of Galaxies · Physics 2018-07-11 S. E. Ragan , T. J. T. Moore , D. J. Eden , M. G. Hoare , J. S. Urquhart , D. Elia , S. Molinari

We present a new derivation of the Milky Way's current star formation rate (SFR) based on the data of the Hi-GAL Galactic plane survey. We estimate the distribution of the SFR across the Galactic plane from the star-forming clumps…

Estimates of the integrated (SFR) and specific (sSFR) rates of star formation are given for 181 galaxies of later Sc, Scd, and Sd types seen almost face-on. Their SFRs were determined from FUV fluxes in the GALEX survey. The median values…

Astrophysics of Galaxies · Physics 2020-06-17 V. E. Karachentseva , I. D. Karachentsev , O. G. Kashibadze

We investigate the relationship between HI, H_2, and the star formation rate (SFR) using azimuthally averaged data for seven CO-bright spiral galaxies. Contrary to some earlier studies based on global fluxes, we find that the SFR surface…

Astrophysics · Physics 2009-11-07 Tony Wong , Leo Blitz

(Abridged) We present a comprehensive analysis of the relationship between star formation rate surface density (SFR SD) and gas surface density (gas SD) at sub-kpc resolution in a sample of 18 nearby galaxies. We use high resolution HI data…

In the local Universe, galaxy properties show a strong dependence on environment. In cluster cores, early type galaxies dominate, whereas star-forming galaxies are more and more common in the outskirts. At higher redshifts and in somewhat…

(modified) We present a comprehensive study of the physical properties of \~10^5 galaxies with measurable star formation in the SDSS. By comparing physical information extracted from the emission lines with continuum properties, we build up…

Astrophysics · Physics 2009-09-25 J. Brinchmann , S. Charlot , S. D. M. White , C. Tremonti , G. Kauffmann , T. Heckman , J. Brinkmann

We estimate the fraction of stars that form in compact clusters (bound and unbound), Gamma_F, in a diverse sample of eight star-forming galaxies, including two irregulars, two dwarf starbursts, two spirals, and two mergers. The average…

Astrophysics of Galaxies · Physics 2018-07-11 Rupali Chandar , S. Michael Fall , Bradley C. Whitmore , Alexander J. Mulia

A sample of 12614 star-forming galaxies (SFGs) with stellar mass >10^9.5 M_sun between 0.6<z<0.8 from COSMOS is selected to study the intrinsic scatter of the correlation between star formation rate (SFR) and stellar mass. We derive SFR…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-17 Kexin Guo , Xian Zhong Zheng , Hai Fu

To investigate the variability of the star formation rate (SFR) of galaxies, we define a star formation change parameter, SFR$_{\rm 5Myr}$/SFR$_{\rm 800Myr}$ which is the ratio of the SFR averaged within the last 5 Myr to the SFR averaged…

Astrophysics of Galaxies · Physics 2020-04-08 Enci Wang , Simon J. Lilly

We use a sample of 13,511 nearby galaxies from the ALFALFA and SDSS spectroscopic surveys to study the relation between the spatial distribution of H I 21 cm emission and star formation rate (SFR). We introduce a new non-parametric quantity…

Astrophysics of Galaxies · Physics 2022-05-18 Niankun Yu , Luis C. Ho , Jing Wang

We present an analysis of the star formation rate in galaxies between 0.7<z<1.8 using Near Infrared Camera and Multi-Object Spectrograph (NICMOS) grism spectral observations. We detect 163 galaxies in an area of ~4.4 square arcminutes, 37…

Astrophysics · Physics 2007-05-23 A. M. Hopkins , A. J. Connolly , A. S. Szalay

Galaxy star formation rates (SFRs) are sensitive to the local environment; for example, the high-density regions at the cores of dense clusters are known to suppress star formation. It has been suggested that galaxy transformation occurs…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-28 K. Tyler , G. H. Rieke , D. J. Wilman , S. L. McGee , R. G. Bower , L. Bai , J. S. Mulchaey , L. C. Parker , Y. Shi , D. Pierini

We present the first mid-IR study of galaxy groups in the nearby Universe based on Spitzer MIPS observations of a sample of nine redshift-selected groups from the XMM-IMACS (XI) project, at z=0.06. We find that on average the star-forming…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 Lei Bai , Jesper Rasmussen , John S. Mulchaey , Ali Dariush , Somak Raychaudhury , Trevor J. Ponman

We use the photometric information contained in individual pixels of 44,964 (0.019<z<0.125 and -23.5<M_r<-20.5) galaxies in the Fourth Data Release (DR4) of the Sloan Digital Sky Survey to investigate the effects of environment on galaxy…

We test the influence of spiral arms on the star formation activity of disk galaxies by constructing and fitting multi-wavelength SEDs for the two nearby spiral galaxies NGC 628 and NGC 4321, at a spatial scale of 1-1.5kpc scale. Recent…

Astrophysics of Galaxies · Physics 2024-07-11 Bingqing Sun , Daniela Calzetti , Andrew J. Battisti

The aim of this paper is to characterize the radial structure of the star formation rate (SFR) in galaxies in the nearby Universe as represented by the CALIFA survey. The sample under study contains 416 galaxies observed with IFS, covering…

We present a demographic analysis of integrated star formation and gas properties for a sample of galaxies representative of the overall population at z~0. This research was undertaken in order to characterise the nature of star formation…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 M. S. Bothwell , R. C. Kennicutt , J. C. Lee

Relations between star formation rates along the spiral arms and the velocities of gas inflow into the arms in grand-design galaxy NGC 628 were studied. We found that the radial distribution of average star formation rate in individual star…

Astrophysics of Galaxies · Physics 2015-05-08 Alexander S. Gusev , Firouz Sakhibov , Yury N. Efremov

A new method of evaluating relative (arm with respect to the interarm disk) star formation rates and relative star formation efficiencies, together with spiral arm-amplitudes, as a function of the galactocentric radius, using broad-band…

Astrophysics · Physics 2009-09-25 J. Cepa , F. de Pablos
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