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相关论文: Luminous IR Galaxies in a Merger Sequence: BIMA CO…

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Essentially all Ultra-Luminous IR Galaxies (ULIRGs) are in disturbed, interacting or merging systems. It is known that interactions tend to induce galactic starbursts. Thus, elliptical galaxies which are formed in mergers will tend to have…

天体物理学 · 物理学 2007-05-23 A. C. Baker , D. L. Clements

The project AMIGA (Analysis of the interstellar Medium of Isolated GAlaxies) will provide a statistically significant sample of the most isolated galaxies in the northern sky. Such a control sample is necessary to assess the role of the…

天体物理学 · 物理学 2009-11-10 U. Lisenfeld , L. Verdes-Montenegro , D. Espada , E. Garcia , S. Leon , J. Sabater , J. W. Sulentic , S. Verley

The build up of heavy elements and the stellar mass assembly are fundamental processes in the formation and evolution of galaxies. Although they have been extensively studied through observations and simulations, the key elements that…

Galaxy interactions are a common phenomenon in clusters of galaxies. Especially major mergers are of particular importance, because they can change the morphological type of galaxies. They have an impact on the mass function of galaxies and…

星系天体物理 · 物理学 2015-05-14 J. Weniger , Ch. Theis , S. Harfst

The Laser Interferometer Space Antenna (LISA) will soon detect gravitational waves (GWs) emitted by massive black hole (MBH) mergers. Some theoretical models have predicted transient electromagnetic (EM) emission from these mergers,…

Galaxy cluster mergers are representative of a wide range of physics, making them an excellent probe of the properties of dark matter and the ionized plasma of the intracluster medium. To date, most studies have focused on mergers occurring…

How cosmic rays sample the multi-phase interstellar medium (ISM) in starburst galaxies has important implications for many science goals, including evaluating the cosmic ray calorimeter model for these systems, predicting their neutrino…

高能天体物理现象 · 物理学 2013-11-22 Erin Boettcher , Ellen G. Zweibel , Tova M. Yoast-Hull , J. S. Gallagher

The Local Interstellar Medium (LISM) is a unique environment that presents an opportunity to study general interstellar phenomena in great detail and in three dimensions. In particular, high resolution optical and ultraviolet spectroscopy…

天体物理学 · 物理学 2007-05-23 Seth Redfield

Massive young clusters (YCs) are expected to host intermediate-mass black holes (IMBHs) born via runaway collapse. These IMBHs are likely in binaries and can undergo mergers with other compact objects, such as stellar mass black holes (BHs)…

宇宙学与河外天体物理 · 物理学 2014-11-21 M. Mapelli , C. Huwyler , L. Mayer , Ph. Jetzer , A. Vecchio

We present an analysis of the molecular and atomic gas emission in the rest-frame far-infrared and sub-millimetre, from the lensed z=2.3 sub-millimetre galaxy SMM J2135-0102. We obtain very high signal-to-noise detections of 11 transitions…

The merging history of galaxies can be traced with studies of dynamically close pairs. These consist of a massive primary galaxy and a less massive secondary (or satellite) galaxy. The study of the stellar populations of secondary (lower…

We estimate the expected signal-to-noise ratios (SNRs) from the three phases (inspiral,merger,ringdown) of coalescing binary black holes (BBHs) for initial and advanced ground-based interferometers (LIGO/VIRGO) and for space-based…

广义相对论与量子宇宙学 · 物理学 2009-12-30 Eanna E. Flanagan , Scott A. Hughes

We investigate the spatially-resolved morphology of galaxies in the early Universe. We consider a typical redshift z = 6 Lyman Break galaxy, "Althaea" from the SERRA hydrodynamical simulations. We create mock rest-frame ultraviolet,…

星系天体物理 · 物理学 2020-11-18 A. Zanella , A. Pallottini , A. Ferrara , S. Gallerani , S. Carniani , M. Kohandel , C. Behrens

The molecular gas in the interstellar medium (ISM) of star-forming galaxy populations exhibits diverse physical properties. We investigate the $^{12}$CO excitation of twelve dusty, luminous star-forming galaxies at $z \sim 2-4$ by combining…

We present sub-arcsecond resolution IRAM PdBI interferometry of eight submillimeter galaxies at redshifts from 2 to 3.4, where we detect continuum at 1mm and/or CO lines at 3 and 1 mm. The CO 3-2/4-3 line profiles in five of the sources are…

天体物理学 · 物理学 2009-07-09 L. J. Tacconi , R. Neri , S. C. Chapman , R. Genzel , I. Smail , R. J. Ivison , F. Bertoldi , A. Blain , P. Cox , T. Greve , A. Omont

We present a study of the molecular gas in early-mid stage major-mergers, with a sample of 43 major-merger galaxy pairs selected from the Mapping Nearby Galaxies at Apache Point Observatory (MaNGA) survey and a control sample of 195…

星系天体物理 · 物理学 2024-05-01 Qingzheng Yu , Taotao Fang , Cong Kevin Xu , Shuai Feng , Siyi Feng , Yu Gao , Xue-Jian Jiang , Ute Lisenfeld

Astrochemistry has been widely developed as a power tool to probe physical properties of the interstellar medium (ISM) in various conditions of the Milky Way (MW) Galaxy, and in near and distant galaxies. Most current studies conventionally…

Joint gravitational-wave detections of stellar-mass black-hole binaries by ground- and space-based observatories will provide unprecedented opportunities for fundamental physics and astronomy. We present a semianalytic method to estimate…

We use imaging Fabry-Perot observations to explore the dynamical conditions in four southern ultraluminous (L_IR > 10^12 L_sun) infrared galaxies. These galaxies all show morphological and kinematic features indicative of a major merger,…

天体物理学 · 物理学 2007-05-23 Chris Mihos , Greg Bothun

Recent numerical simulations reveal that the isothermal collapse of pristine gas in atomic cooling haloes may result in stellar binaries of supermassive stars with $M_* \gtrsim 10^4\ \mathrm{M}_{\odot}$. For the first time, we compute the…

星系天体物理 · 物理学 2018-07-24 Tilman Hartwig , Bhaskar Agarwal , John A. Regan