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相关论文: The Molecular Mass function of the Local Universe

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We discuss the results of the relationships between the K-band and stellar mass, far-infrared luminosities, star formation rate, dust and gas masses of nearby galaxies computing the bivariate K-band Luminosity Function (BLF) and bivariate…

星系天体物理 · 物理学 2018-09-19 P. Andreani , A. Boselli , L. Ciesla , R. Vio , L. Cortese , V. Buat , Y. Miyamoto

We revisit the mass ratio Rmol between molecular hydrogen (H2) and atomic hydrogen (HI) in different galaxies from a phenomenological and theoretical viewpoint. First, the local H2-mass function (MF) is estimated from the local…

星系天体物理 · 物理学 2009-07-17 D. Obreschkow , S. Rawlings

We present new empirical constraints on the evolution of $\rho_{\rm H_2}$, the cosmological mass density of molecular hydrogen, back to $z\approx2.5$. We employ a statistical approach measuring the average observed $850\mu{\rm m}$ flux…

We use deep far-infrared data from the PEP/GOODS-Herschel surveys and rest frame ultraviolet photometry to study the evolution of the molecular gas mass function of normal star forming galaxies. Computing the molecular gas mass, M(mol), by…

宇宙学与河外天体物理 · 物理学 2015-06-15 S. Berta , D. Lutz , R. Nordon , R. Genzel , B. Magnelli , P. Popesso , D. Rosario , A. Saintonge , S. Wuyts , L. J. Tacconi

We determine the cosmic abundance of molecular hydrogen (H2) in the local universe from the xCOLD GASS survey. To constrain the H2 mass function at low masses and correct for the effect of the lower stellar mass limit of 10^9 Msun in the…

星系天体物理 · 物理学 2020-10-14 Thomas J. Fletcher , Amelie Saintonge , Paula S. Soares , Andrew Pontzen

Galaxy counts and recent measurements of the luminosity density in the near-infrared (NIR) have indicated the possibility that the local universe may be under-dense on scales of several hundred megaparsecs. The presence of a large-scale…

宇宙学与河外天体物理 · 物理学 2013-09-09 Ryan C. Keenan , Amy J. Barger , Lennox L. Cowie

We present a measurement of the evolution of the stellar mass function in four redshift bins at 0.4 < z < 1.2 using a sample of more than 5000 K-selected galaxies drawn from the MUNICS dataset. Our data cover the stellar mass range 10^10 <…

天体物理学 · 物理学 2009-09-29 N. Drory , R. Bender , G. Feulner , U. Hopp , C. Maraston , J. Snigula , G. J. Hill

We study the relationship between the K-band and the sub-millimetre (submm) emissions of nearby galaxies by computing the bivariate K-band-submm luminosity function (BLF) of the Herschel Reference Survey (HRS), a volume-limited sample…

宇宙学与河外天体物理 · 物理学 2014-07-02 P. Andreani , L. Spinoglio , A. Boselli , L. Ciesla , L. Cortese , R. Vio , M. Baes , G. J. Bendo , I. De Looze

We present the first measurement of the black hole (BH) mass function for broad-line active galaxies in the local Universe. Using the ~9000 broad-line active galaxies from the Fourth Data Release of the Sloan Digital Sky Survey, we…

天体物理学 · 物理学 2011-02-11 Jenny E. Greene , Luis C. Ho

We present a comprehensive method for determining stellar mass functions, and apply it to samples in the local Universe. We combine the classical 1/Vmax approach with STY, a parametric maximum likelihood method and SWML, a non-parametric…

星系天体物理 · 物理学 2016-04-20 Anna K. Weigel , Kevin Schawinski , Claudio Bruderer

We derive the number density evolution of massive field galaxies in the redshift range 0.4 < z < 1.2 using the K-band selected field galaxy sample from the Munich Near-IR Cluster Survey (MUNICS). We rely on spectroscopically calibrated…

天体物理学 · 物理学 2009-11-07 N. Drory , R. Bender , J. Snigula , G. Feulner , U. Hopp , C. Maraston , G. J. Hill , C. Mendes de Oliveira

We study the evolution of the cold gas content of galaxies by splitting the interstellar medium into its atomic and molecular hydrogen components, using the galaxy formation model GALFORM in the LCDM framework. We calculate the…

宇宙学与河外天体物理 · 物理学 2015-05-28 Claudia del P. Lagos , Carlton M. Baugh , Cedric G. Lacey , Andrew J. Benson , Han-Seek Kim , Chris Power

Our recent estimates of galaxy counts and the luminosity density in the near-infrared (Keenan et al. 2010, 2012) indicated that the local universe may be under-dense on radial scales of several hundred megaparsecs (Mpc). Such a large-scale…

宇宙学与河外天体物理 · 物理学 2014-10-01 Ryan C. Keenan , Amy J. Barger , Lennox L. Cowie

We present an analysis of the molecular specific angular momentum-mass ($j_{H_2}-M_{H_2}$) relation using a sample of 51 nearby disc galaxies from the PHANGS-ALMA survey with deep, high-resolution molecular gas rotation curves and surface…

星系天体物理 · 物理学 2025-05-14 Nikki N. Geesink , Pavel E. Mancera Piña , Claudia del P. Lagos , Mariska Kriek

[Abridged] Do some environments favor efficient conversion of molecular gas into stars? To answer this, we need to be able to estimate the H2 mass. Traditionally, this is done using CO and a few assumptions but the Herschel observations in…

We use a large sample of galaxies from the Two Micron All Sky Survey (2MASS) and the Sloan Digital Sky Survey (SDSS) to calculate galaxy luminosity and stellar mass functions in the local Universe. We estimate k-corrections, evolution…

天体物理学 · 物理学 2011-05-05 Eric F. Bell , Daniel H. McIntosh , Neal Katz , Martin D. Weinberg

To develop galaxy-targeting approaches, the gravitational-wave community built a catalog of stellar mass in the local universe based on the 2MASS spectroscopic and photometric redshift surveys. By cleaning and supplementing this catalog,…

宇宙学与河外天体物理 · 物理学 2021-09-08 J. Biteau

The goal of this work is to measure the evolution of the Galaxy Stellar Mass Function and of the resulting Stellar Mass Density up to redshift ~4, in order to study the assembly of massive galaxies in the high redshift Universe. We have…

We present the molecular gas mass fraction ($f_\mathrm{H_2}$) and star-formation efficiency (SFE) of local galaxies on the basis of our new CO($J=1-0$) observations with the Nobeyama 45m radio telescope, combined with the COLDGASS galaxy…

We present an empirical method to measure the halo mass function (HMF) of galaxies. We determine the relation between the \hi\ line-width from single-dish observations and the dark matter halo mass ($M_{200}$) inferred from rotation curve…

星系天体物理 · 物理学 2020-01-08 Pengfei Li , Federico Lelli , Stacy McGaugh , Marcel S. Pawlowski , Martin A. Zwaan , James Schombert
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