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Using the sample from the \it Redshift One LDSS3 Emission line Survey \rm (ROLES), we probe the dependence of star formation rate (SFR) and specific star formation rate (sSFR) as a function of stellar mass $M_*$ and environment as defined…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 I. H. Li , Karl Glazebrook , David Gilbank , Michael Balogh , Richard Bower , Ivan Baldry , Greg Davies , George Hau , Pat McCarthy

Recent observational results indicate that the functional shape of the spatially-resolved star formation-molecular gas density relation depends on the spatial scale considered. These results may indicate a fundamental role of sampling…

Astrophysics of Galaxies · Physics 2015-06-04 Daniela Calzetti , Guilin Liu , Jin Koda

We study the spatially resolved star formation history and molecular gas distribution of 58 nearby galaxies, using integral field spectroscopy from the CALIFA survey and CO $J=1\rightarrow 0$ intensity mapping from the CARMA EDGE survey. We…

Astrophysics of Galaxies · Physics 2019-02-06 Ryan Chown , Cheng Li , E. Athanassoula , Niu Li , Christine D. Wilson , Lin Lin , Houjun Mo , Laura C. Parker , Ting Xiao

We investigate the relation between star formation rate (SFR) and gas surface densities in Galactic star forming regions using a sample of YSOs and massive clumps. Our YSO sample consists of objects located in 20 molecular clouds from the…

Astrophysics of Galaxies · Physics 2015-05-19 Amanda Heiderman , Neal J. Evans , Lori E. Allen , Tracy Huard , Mark Heyer

We investigate the cosmic evolution of the absolute and specific star formation rate (SFR, sSFR) of galaxies as derived from a spatially-resolved study of the stellar populations in a set of 366 nearby galaxies from the CALIFA survey. The…

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

We present an analysis of the relation between star formation rate (SFR) surface density (sigmasfr) and mass surface density of molecular gas (sigmahtwo), commonly referred to as the Kennicutt-Schmidt (K-S) relation, at its intrinsic…

Astrophysics of Galaxies · Physics 2015-05-20 Viviana Casasola , Leslie Hunt , Francoise Combes , Santiago Garcia-Burillo

We compare the observed turbulent pressure in molecular gas, $P_\mathrm{turb}$, to the required pressure for the interstellar gas to stay in equilibrium in the gravitational potential of a galaxy, $P_\mathrm{DE}$. To do this, we combine…

We analyzed the global and resolved properties of approximately 1,240 nearby star-forming galaxies from the MaNGA survey, comparing compact and extended galaxies -- those with smaller and larger radii ($R_{\rm e}$), respectively -- at a…

Astrophysics of Galaxies · Physics 2024-10-23 Lin Lin , Shiyin Shen , Hassen M. Yesuf , Ye-Wei Mao , Lei Hao

This study investigated the relation between the surface density of star formation rate (SFR) ($\Sigma_{\mathrm{SFR}}$), stellar mass ($\Sigma_{M_{\ast}}$), and molecular gas mass ($\Sigma_{M_\mathrm{mol}}$) on nearly 1 kpc scales averaged…

We present our study on the spatially resolved H_alpha and M_star relation for 536 star-forming and 424 quiescent galaxies taken from the MaNGA survey. We show that the star formation rate surface density (Sigma_SFR), derived based on the…

We use observed radial profiles of mass surface densities of total, $\Sigma_g$, & molecular, $\Sigma_{\rm H2}$, gas, rotation velocity & star formation rate (SFR) surface density, $\Sigma_{\rm sfr}$, of the molecular-rich ($\Sigma_{\rm…

Astrophysics of Galaxies · Physics 2015-06-19 Chutipong Suwannajak , Jonathan C. Tan , Adam K. Leroy

We explore the effects of environment on star formation in late-type galaxies by studying the dependence of the radial profiles of specific star formation rate (sSFR) on environment and the stellar mass, using a sample of 275 late-type…

Astrophysics of Galaxies · Physics 2019-01-23 V. Coenda , D. Mast , H. J. Martínez , H. Muriel , M. Merchán

Exploiting the sample of 30 local star-forming, undisturbed late-type galaxies in different environments drawn from the GAs Stripping Phenomena in galaxies with MUSE (GASP), we investigate the spatially resolved Star Formation Rate-Mass…

The energy and momentum feedback from young stars has a profound impact on the interstellar medium (ISM), including heating and driving turbulence in the neutral gas that fuels future star formation. Recent theory has argued that this leads…

Astrophysics of Galaxies · Physics 2015-06-16 Chang-Goo Kim , Eve C. Ostriker , Woong-Tae Kim

We present a sample of 17 objects from the CALIFA survey where we find initial evidence of galactic winds based on their off-axis ionization properties. We identify the presence of outflows using various optical diagnostic diagrams (e.g.,…

We report a super-linear correlation for the star formation law based on new CO($J$=1-0) data from the CARMA and NOBEYAMA Nearby-galaxies (CANON) CO survey. The sample includes 10 nearby spiral galaxies, in which structures at sub-kpc…

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

We study the Kennicutt-Schmidt relation between average star formation rate and average cold gas surface density in the Hi dominated ISM of nearby spiral and dwarf irregular galaxies. We divide the galaxies into grid cells varying from…

Astrophysics of Galaxies · Physics 2015-06-24 Sambit Roychowdhury , Mei-Ling Huang , Guinevere Kauffmann , Jing Wang , Jayaram N. Chengalur

We calculated the radial profiles of the azimuthally averaged midplane gas volume density $\rho_g$ for 11 high surface brightness (HSB) spiral galaxies, 7 low surface brightness (LSB) galaxies and 3 S0 galaxies assuming their gaseous layers…

Cosmology and Nongalactic Astrophysics · Physics 2011-07-20 A. V. Zasov , O. V. Abramova