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相关论文: Predicting dust extinction from the stellar mass o…

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While dust is a major player in galaxy evolution, its relationship with gas and stellar radiation in the early universe is still not well understood. We combine 3D-HST emission line fluxes with far-UV through far-IR photometry in a sample…

星系天体物理 · 物理学 2021-06-02 Gautam Nagaraj , Robin Ciardullo , William Bowman , Caryl Gronwall

We re-examine the effect of Lyman continuum ($\lambda \leq 912$ \AA) extinction (LCE) by dust in H {\sc ii} regions in detail and discuss how it affects the estimation of the global star formation rate (SFR) of galaxies. To clarify the…

天体物理学 · 物理学 2009-11-06 Akio K. Inoue , Hiroyuki Hirashita , Hideyuki Kamaya

We study the relation between the star formation intensity of galaxies and the extinction by dust of their emitted light. We employ a detailed statistical analysis of Hubble Deep Field North data to show a clear positive correlation between…

天体物理学 · 物理学 2009-11-11 Oren Zoran , Rennan Barkana , Rodger I. Thompson

In this work we analyze the physical properties of a sample of 153 star forming galaxies at z~0.84, selected by their H-alpha flux with a NB filter. B-band luminosities of the objects are higher than those of local star forming galaxies.…

宇宙学与河外天体物理 · 物理学 2015-05-28 V. Villar , J. Gallego , P-G. Pérez-González , G. Barro , J. Zamorano , K. G. Noeske , D. C. Koo

Extinction in galaxies affects their observed properties. In scenarios describing the distribution of dust and stars in individual disk galaxies, the amplitude of the extinction can be modulated by the inclination of the galaxies. In this…

宇宙学与河外天体物理 · 物理学 2015-05-14 Ching-Wa Yip , Alex Szalay , Rosemary Wyse , Laszlo Dobos , Tamas Budavari , Istvan Csabai

Different wavelength regimes and methods for estimating the space density of the star-formation rate (SFR) result in discrepant values. While it is recognised that ultra-violet (UV) and H-alpha emission line data must be corrected for the…

天体物理学 · 物理学 2009-11-06 A. M. Hopkins , A. J. Connolly , D. B. Haarsma , L. E. Cram

We present empirical relations between the global dust reddening and other physical galaxy properties including the Halpha luminosity, Halpha surface brightness, metallicity and axial ratio for star-forming disc galaxies. The study is based…

宇宙学与河外天体物理 · 物理学 2012-03-12 Ting Xiao , Tinggui Wang , Huiyuan Wang , Hongyan Zhou , Honglin Lu , Xiaobo Dong

We investigate early galaxy evolution by modeling self-consistently their radially-resolved evolution of gas, stars, heavy elements, and dust content. Our model successfully reproduces various observed properties of JWST-identified galaxies…

星系天体物理 · 物理学 2025-02-19 Daisuke Toyouchi , Hidenobu Yajima , Andrea Ferrara , Kentaro Nagamine

In recent years, significant growth in the amount of data available to astronomers has opened up the possibility to uncover fundamental correlations, linking the dust component of a galaxy to its star formation rate (SFR). In this paper, we…

Star-forming galaxies (SFGs) adhere to a surprisingly tight scaling relation of dust attenuation parameterized by the infrared excess (IRX=$L_{\rm IR}/L_{\rm UV}$), being jointly determined by the star formation rate (SFR), galaxy size…

We investigate the mass-metallicity relationship of star forming galaxies by analysing the absorption line spectra of $\sim$200,000 galaxies in the Sloan Digital Sky Survey. The galaxy spectra are stacked in bins of stellar mass and a…

星系天体物理 · 物理学 2023-06-07 Eva Sextl , Rolf-Peter Kudritzki , H. Jabran Zahid , I-Ting Ho

We find a tight correlation between the dust extinction, traced by the Balmer Decrement (BD$=$H$\alpha$/H$\beta$), the CO(1-0) line luminosity (L$_{CO}$) and total molecular gas mass (M$_{H2}$) in a sample of $222$ local star-forming…

星系天体物理 · 物理学 2019-05-15 Alice Concas , Paola Popesso

We present an analysis of line-of-sight extinction measurements obtained using data from the Magellanic Clouds Photometric Survey, which provides 4-filter photometry for millions of stars in the Large Magellanic Cloud. We find that visual…

天体物理学 · 物理学 2009-07-28 Dennis Zaritsky

Using a samples of 61506 spiral galaxies selected from the SDSS DR2, we examine the luminosity function (LF) of spiral galaxies with different inclination angles. We find that the characteristic luminosity of the LF, $L^*$, decreases with…

天体物理学 · 物理学 2011-02-11 Zhengyi Shao , Quanbao Xiao , Shiyin Shen , H. J. Mo , Xiaoyang Xia , Zugan Deng

Using a sample of 299 Ha-selected galaxies at z~0.8, we study the relationship between galaxy stellar mass, gas-phase metallicity, and star formation rate (SFR), and compare to previous results. We use deep optical spectra obtained with the…

[ABRIDGED] We derive the dust properties for 753 local galaxies and examine how these relate to some of their physical properties. We model their global dust-SEDs, treated statistically as an ensemble within a hierarchical Bayesian dust-SED…

星系天体物理 · 物理学 2019-10-23 Sophia Lianou , Pauline Barmby , Aleksandr Mosenkov , Matthew Lehnert , Oskar Karczewski

Using spectra of normal emission line galaxies from the First Data Release of the Sloan Digital Sky Survey (SDSS) we have investigated the relations between the extinction $C({\rm H}\beta)$ as derived from the \Ha/\Hb emission line ratio…

天体物理学 · 物理学 2009-11-10 G. Stasinska , A. Mateus , L. Sodre , R. Szczerba

We present measurements of the dependence of the clustering amplitude of galaxies on their star formation rate (SFR) and stellar mass ($M_*$) at $0.7 < z < 1.5$ to assess the extent to which environment affects these properties. While these…

星系天体物理 · 物理学 2022-07-27 Callie Clontz , David Wake , Zheng Zheng

We report results concerning the distribution and properties of galactic extinction at high galactic latitudes derived from stellar statistics using the Sloan Digital Sky Survey (SDSS). We use the classical Wolf diagram method to identify…

星系天体物理 · 物理学 2015-05-14 Evgeny Gorbikov , Noah Brosch

We investigate dust attenuation and its dependence on viewing angle for 308 star-forming galaxies at $1.3\leq z\leq2.6$ from the MOSFIRE Deep Evolution Field (MOSDEF) survey. We divide galaxies with a detected H$\alpha$ emission line and…