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Related papers: The Nuclear Region of NGC1365: Star Formation, Neg…

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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 present a two-zone theory for feedback-regulated star formation in galactic discs, consistently connecting the galaxy-averaged star formation law with star formation proceeding in giant molecular clouds (GMCs). Our focus is on galaxies…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-12 C. -A. Faucher-Giguere , E. Quataert , P. F. Hopkins

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 analysed the centre of NGC 1566, which hosts a well-studied active galactic nucleus (AGN), known for its variability. With the aid of techniques such as Principal Component Analysis Tomography, analysis of the emission-line spectra,…

Astrophysics of Galaxies · Physics 2017-07-11 Patrícia da Silva , J. E. Steiner , R. B. Menezes

The center of the nearby galaxy NGC\,253 hosts a population of more than a dozen super star clusters (SSCs) which are still in the process of forming. The majority of the star formation of the burst is concentrated in these SSCs, and the…

The relationship between the star formation rate and surface density of neutral gas within the disk of M33 is examined with new imaging observations of CO J=1-0 emission gathered with the FCRAO 14m telescope and IRAS HiRes images of the 60…

Astrophysics · Physics 2009-11-10 M. H. Heyer , E. Corbelli , S. E. Schneider , J. S. Young

Recent studies have shown that star formation in mergers does not seem to follow the same Schmidt-Kennicutt (KS) relation as in spiral disks, presenting a higher star formation rate (SFR) for a given gas column density. In this paper we…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-28 Médéric Boquien , Ute Lisenfeld , Pierre-Alain Duc , Jonathan Braine , Frédéric Bournaud , Elias Brinks , Vassilis Charmandaris

We present a multi-wavelength study of nuclear outflows in the nearby dwarf Seyfert galaxy NGC~4395, which hosts an intermediate-mass black hole. Using \textit{JWST}/NIRSpec and MIRI IFU spectroscopy (1.66--28.6~$\mu$m), together with ALMA…

Gas and star velocity dispersions have been derived for eight circumnuclear star-forming regions (CNSFRs) and the nucleus of the spiral galaxy NGC3310 using high resolution spectroscopy in the blue and far red. Stellar velocity dispersions…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 Guillermo F. Hagele , Angeles I. Diaz , Monica V. Cardaci , Elena Terlevich , Roberto Terlevich

We present a study of the central 2.3 kpc of NGC 5135, a nearby Luminous Infrared Galaxy (LIRG) with an AGN and circumnuclear starburst. Our main results are based on intermediate spectral resolution (~ 3000-4000) near infrared data taken…

Cosmology and Nongalactic Astrophysics · Physics 2014-11-18 A. G. Bedregal , L. Colina , A. Alonso-Herrero , S. Arribas

We report the detection of CO(2-1) and 3.1 mm and 1.3 mm continuum emission towards the extremely young starburst in NGC 5253, with data taken from the Owens Valley Millimeter Array. Faint CO emission originates in five molecular clouds…

Astrophysics · Physics 2009-11-07 David S. Meier , Jean L. Turner , Sara C. Beck

We investigate the relation between galaxy structure and star formation rate (SFR) in a sample of $\sim2.9\times10^{4}$ central galaxies with $z<0.0674$ and axial ratios $b/a>0.5$. The star-forming main sequence (SFMS) shows a bend around…

We present a detailed analysis of the gas conditions in the H_2 luminous radio galaxy 3C326N at z~0.1, which has a low star formation rate (SFR~0.07 M_sun/yr) in spite of a gas surface density similar to those in starburst galaxies. Its…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 N. P. H. Nesvadba , F. Boulanger , P. Salome , P. Guillard , M. D. Lehnert , P. Ogle , P. Appleton , E. Falgarone , G. Pineau des Forets

We present a new survey of HCN(1-0) emission, a tracer of dense molecular gas, focused on the little-explored regime of normal star-forming galaxy disks. Combining HCN, CO, and infrared (IR) emission, we investigate the role of dense gas in…

In order to distinguish between the various components of massive star forming regions (i.e. infalling, outflowing and rotating gas structures) within our own Galaxy, we require high angular resolution observations which are sensitive to…

Astrophysics · Physics 2007-10-23 P. D. Klaassen , C. D. Wilson

ALMA imaging of the cold molecular medium in the nearby starburst galaxy NGC 1808 is presented. The observations reveal the distribution of molecular gas, traced by $^{12}$CO (1-0) and $^{12}$CO (3-2), and continuum (93 and 350 GHz) across…

Astrophysics of Galaxies · Physics 2017-11-15 Dragan Salak , Yuto Tomiyasu , Naomasa Nakai , Nario Kuno , Yusuke Miyamoto , Hiroyuki Kaneko

We present ALMA Cycle-0 observations of the CO (6-5) line emission and of the 435um dust continuum emission in the central kpc of NGC 1614, a local luminous infrared galaxy (LIRG) at a distance of 67.8 Mpc (1 arcsec = 329 pc). The CO…

We study the multi-phase feedback processes in the central ~3 kpc of the barred Sy 2 galaxy NGC 5643. We use observations of the cold molecular gas (ALMA CO(2-1)) and ionized gas (MUSE IFU). We study different regions along the outflow zone…