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相关论文: CO luminosity - line width correlation of sub-mill…

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A linear correlation has been proposed between the CO luminosity ($\rm{L}^{\prime}_{\rm{CO}}$) and full-width at half maximum (FWHM) for high-redshift (z > 1) submillimeter galaxies. However, the controversy concerning the…

宇宙学与河外天体物理 · 物理学 2019-02-12 Yi-han Wu , Tomotsugu Goto , Ece Kilerci Eser , Tetsuya Hashimoto , Seong-jin Kim , Chia-ying Chiang , Ting-chi Huang

We report on the first results of a long-term project to derive distances of galaxies at cosmological distances by applying the CO-line width-luminosity relation. We have obtained deep CO-line observations of galaxies at redshifts up to…

天体物理学 · 物理学 2015-06-24 Y. Sofue , F. Schoeniger , M. Honma , Y. Tutui , T. Ichikawa , K. Wakamatsu , I. Kazes , J. Dickey

This study explores a relationship between the CO luminosity-full width at half-maximum linewidth linear relation (i.e. the CO LFR) and mean galaxy property of the local star-forming galaxy sample in the xCOLDGASS data base, via a…

星系天体物理 · 物理学 2024-10-10 Yi-Han Wu , Jun-Feng Wang , Xiao-Hu Li , Xue-Jian Jiang , Chao-Wei Tsai , Jing-Wen Wu , Kun-Peng Shi , Lin Zhu , Wen-Yu Zhong

Recently, it has been suggested that the CO line width (FWHM(CO)) is a surrogate for the bulge velocity dispersion ($\sigma$) of the host galaxies of high-redshift quasars, and the black hole -- bulge ($M_{BH}-\sigma$) relation obtained…

天体物理学 · 物理学 2008-11-26 Xue-Bing Wu

We identify and investigate a possible correlation between the $\rm{[CII]} 158{\mu}m$ luminosity and linewidth in the $\rm{[CII]}$-detected galaxies. Observationally, the strength of the $\rm{[CII]} 158{\mu}m$ emission line is usually…

星系天体物理 · 物理学 2022-11-10 Y. Wu , Yu Gao , Jun-Feng Wang

We present the analysis of a comprehensive sample of 352 early-type galaxies using public data, to investigate the correlations between CO luminosities and mid-infrared luminosities observed by \textit{Wide-field Infrared Survey Explorer}…

Compact, massive star forming galaxies at $z\sim2.5$ are thought to be building the central regions of giant elliptical galaxies today. However, a significant fraction of these objects were previously shown to have much smaller H$\alpha$…

星系天体物理 · 物理学 2020-01-08 Lamiya Mowla , Erica Nelson , Pieter van Dokkum , Ken Tadaki

We have examined the trend between CO and HI linewidths by compiling the linewidths of 219 nearby galaxies. The trend is that the CO linewidths of fast rotating galaxies tend to be larger than the HI linewidths, and that the HI linewidths…

天体物理学 · 物理学 2007-05-23 Yoshinori Tutui , Yoshiaki Sofue

McKay et al. (2002) have recently used measurements of weak galaxy-galaxy lensing in the Sloan Digital Sky Survey to estimate the cross correlation between galaxies and the projected dark matter density field. They derive a relation between…

天体物理学 · 物理学 2009-11-07 XiaoHu Yang , H. J. Mo , Guinevere Kauffmann , YaoQuan Chu

We present direct constraints on the CO luminosity function at high redshift and the resulting cosmic evolution of the molecular gas density, $\rho_{\rm H2}$(z), based on a blind molecular line scan in the Hubble Deep Field North (HDF-N)…

Context. Cold molecular gas tracers, such as CI and CO lines, have been widely used to infer specific characteristics of the ISM and to derive star-formation relations among galaxies. Aims. However, there is still a lack of systematic…

星系天体物理 · 物理学 2025-12-02 Theodoros Topkaras , Thomas G. Bisbas , Zhi-Yu Zhang , V. Ossenkopf-Okada

We report results from a deep Jansky Very Large Array (JVLA) search for CO 1-0 line emission from galaxies in a candidate galaxy cluster at z~1.55 in the COSMOS field. We target 4 galaxies with optical spectroscopic redshifts in the range…

This paper presents an updated scaling relation between the optical luminosity density (LD) of galaxies in the $r$ band and the density of the warm-hot intergalactic medium (WHIM) in cosmic filaments, using the high-resolution EAGLE…

宇宙学与河外天体物理 · 物理学 2022-04-06 Patrick Holt , Toni Tuominen , Jukka Nevalainen , Massimiliano Bonamente , Teet Kuutma , Pekka Heinämäki , Elmo Tempel

We present CO(J=1-0) and/or CO(J=2-1) spectroscopy for 31 galaxies selected from the ongoing MaNGA survey, obtained with multiple telescopes. This sample is combined with CO observations from the literature to study the correlation of the…

Weak gravitational lensing (WL) has been established as one of the most promising probes of cosmology. So far, most studies have exploited the shear effect of WL leading to coherent distortions of galaxy shapes. But WL also introduces…

宇宙学与河外天体物理 · 物理学 2015-05-13 H. Hildebrandt , L. van Waerbeke , T. Erben

We use the conditional luminosity function (CLF), which gives the number of galaxies with luminosities in the range [L, L+dL] that reside in a halo of mass M, to link the distribution of galaxies to that of dark matter haloes. We seek the…

天体物理学 · 物理学 2009-11-07 Xiaohu Yang , H. J. Mo , Frank C. van den Bosch

We compare the emission at multiple wavelengths of an extended Seyfert galaxy sample, including both types of Seyfert nuclei. We use the Caltech Submillimeter Observatory to observe the CO J = 2-1 transition line in a sample of 45 Seyfert…

宇宙学与河外天体物理 · 物理学 2011-08-17 R. R. Monje , A. W. Blain , T. G. Phillips

Intensity mapping, which images a single spectral line from unresolved galaxies across cosmological volumes, is a promising technique for probing the early universe. Here we present predictions for the intensity map and power spectrum of…

宇宙学与河外天体物理 · 物理学 2016-02-03 Tony Y. Li , Risa H. Wechsler , Kiruthika Devaraj , Sarah E. Church

We investigate the relationship between galaxies and metal-line absorption systems in a large-scale cosmological simulation with galaxy formation. Our detailed treatment of metal enrichment and non-equilibrium calculation of oxygen species…

天体物理学 · 物理学 2009-11-13 Rajib Ganguly , Renyue Cen , Taotao Fang , Kenneth Sembach

We use weak gravitational lensing to measure mean mass profiles around Locally Brightest Galaxies (LBGs). These are selected from the SDSS/DR7 spectroscopic and photometric catalogues to be brighter than any neighbour projected within 1.0…

宇宙学与河外天体物理 · 物理学 2016-01-15 Wenting Wang , Simon White , Rachel Mandelbaum , Bruno Henriques , Michael E. Anderson , Jiaxin Han
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