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相关论文: UVUDF: UV Luminosity Functions at the cosmic high-…

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We use the deep ground-based optical photometry of the Lyman Break Galaxy (LBG) Survey to derive robust measurements of the faint-end slope (alpha) of the UV LF at redshifts 1.9<z<3.4. Our sample includes >2000 spectroscopic redshifts and…

天体物理学 · 物理学 2011-02-11 Naveen A. Reddy , Charles C. Steidel

We use ultraviolet imaging taken with the XMM-Newton Optical Monitor telescope (XMM-OM), covering 280 square arcminutes in the UVW1 band (effective wavelength 2910 Angstroms) to measure rest-frame ultraviolet (1500 Angstrom) luminosity…

Early results from the JWST observations have reported a surprisingly high number of UV-bright galaxies at $z \geq 10$, which appears to challenge the theoretical predictions from standard galaxy formation models in the $\Lambda$CDM…

星系天体物理 · 物理学 2024-07-30 Anirban Chakraborty , Tirthankar Roy Choudhury

We present a comprehensive analysis of z>8 galaxies based on ultra-deep WFC3/IR data. We constrain the evolution of the UV luminosity function (LF) and luminosity densities from z~11 to z~8 by exploiting all the WFC3/IR data over the Hubble…

宇宙学与河外天体物理 · 物理学 2015-06-12 P. A. Oesch , R. J. Bouwens , G. D. Illingworth , I. Labbe , M. Franx , P. G. van Dokkum , M. Trenti , M. Stiavelli , V. Gonzalez , D. Magee

We present a deep LBT/LBC U-band imaging survey (9 deg2) covering the NOAO Bootes field. A total of 14,485 Lyman Break Galaxies (LBGs) at z~3 are selected, which are used to measure the rest-frame UV luminosity function (LF). The large…

宇宙学与河外天体物理 · 物理学 2015-06-16 Fuyan Bian , Xiaohui Fan , Linhua Jiang , Ian McGreer , Arjun Dey , Richard Green , Roberto Maiolino , Fabian Walter , Kyoung-Soo Lee , Romeel Dave

We present results from a GALEX ultraviolet (UV) survey of a complete sample of 390 galaxies within ~11 Mpc of the Milky Way. The UV data are a key component of the composite Local Volume Legacy (LVL), an ultraviolet-to-infrared imaging…

A great deal of our understanding of star formation in the local universe has been built upon an extensive foundation of H-alpha observational studies. However, recent work in the ultraviolet (UV) with GALEX has shown that star formation…

宇宙学与河外天体物理 · 物理学 2010-11-10 Janice C. Lee , Armando Gil de Paz , Christy Tremonti , Robert Kennicutt , the Local Volume Legacy Team

We use deep Hubble Space Telescope imaging of the Frontier Fields to accurately measure the galaxy rest-frame ultraviolet luminosity function (UV LF) in the redshift range $z \sim 6-8$. We combine observations in three lensing clusters…

During the last decades, rapid progress has been made in measurements of the rest-frame ultraviolet (UV) luminosity function (LF) for high-redshift galaxies ($z \geq 6$). The faint-end of the galaxy LF at these redshifts provides powerful…

宇宙学与河外天体物理 · 物理学 2019-08-07 Yueying Ni , Mei-Yu Wang , Yu Feng , Tiziana Di Matteo

We present the evolution of the comoving SFR density in the redshift range 0 < z < 5 using the first epoch data release of the VVDS, that is 11564 spectra selected at I_AB=24 over 2200 arcmin^2 in two fields of view, the VVDS-0226-04 and…

We provide a systematic measurement of the rest-frame UV continuum slope beta over a wide range in redshift (z~2-6) and rest-frame UV luminosity (0.1-2L*) to improve estimates of the SFR density at high redshift. We utilize the deep optical…

宇宙学与河外天体物理 · 物理学 2014-11-20 R. J. Bouwens , G. D. Illingworth , M. Franx , R-R. Chary , G. R. Meurer , C. J. Conselice , H. Ford , M. Giavalisco , P. van Dokkum

Using the multiwavelength photometric and spectroscopic data covering the CDF-S obtained within the GOODS, we investigate the rest-frame UV properties of galaxies to z~2.2, including the evolution of the luminosity function, the luminosity…

Rest-frame far-ultraviolet (FUV) luminosities form the `backbone' of our understanding of star formation at all cosmic epochs. These luminosities are typically corrected for dust by assuming that the tight relationship between the UV…

天体物理学 · 物理学 2007-05-23 Eric F. Bell

Measuring star formation rates (SFRs) in high-z galaxies with their rest-frame ultraviolet (UV) continuum can be uncertain because of dust obscuration. Prior studies had used the submillimeter emission at 850 um to determine the intrinsic…

宇宙学与河外天体物理 · 物理学 2015-05-19 I-Ting Ho , Wei-Hao Wang , Glenn E. Morrison , Neal A. Miller

Thanks to the successful performance of the James Webb Space Telescope, our understanding of the epoch of reionization of the Universe has been advanced. The ultraviolet luminosity functions (UV LFs) of galaxies span a wide range of…

宇宙学与河外天体物理 · 物理学 2024-10-03 Yi-Ying Wang , Lei Lei , Shao-Peng Tang , Guan-Wen Yuan , Yi-Zhong Fan

Observations of high-redshift galaxies have provided us with a rich tool to study the physics at play during the epoch of reionisation. The luminosity function (LF) of these objects is an indirect tracer of the complex processes that govern…

宇宙学与河外天体物理 · 物理学 2022-04-04 Nashwan Sabti , Julian B. Muñoz , Diego Blas

UVCANDELS is a HST Cycle-26 Treasury Program awarded 164 orbits of primary ultraviolet (UV) F275W imaging and coordinated parallel optical F435W imaging in four CANDELS fields: GOODS-N, GOODS-S, EGS, and COSMOS, covering a total area of…

We have used archival ultraviolet (UV) imaging of 50 nearby star-forming galaxies obtained with the Ultraviolet Imaging Telescope (UIT) to derive integrated near-UV and far-UV magnitudes, and have combined these data with H alpha,…

天体物理学 · 物理学 2009-10-31 Eric F. Bell , Robert C. Kennicutt

We present new measurements of the evolution of the galaxy stellar mass functions (GSMF) and UV luminosity functions (UV LF) for galaxies from $z=6-9$ within the Frontier Field cluster MACSJ0416.1-2403 and its parallel field. To obtain…

星系天体物理 · 物理学 2019-04-10 Rachana Bhatawdekar , Christopher J. Conselice , Berta Margalef-Bentabol , Kenneth Duncan