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相关论文: A dense micro-cluster of Class 0 protostars in NGC…

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In this paper we present the CMZoom Survey's catalog of compact sources (< 10'', ~0.4pc) within the Central Molecular Zone (CMZ). CMZoom is a Submillimeter Array (SMA) large program designed to provide a complete and unbiased map of all…

We have carried out a survey of the dense clumps associated with 14 embedded clusters in the C^18O (J=1-0) line emission with the Nobeyama 45m telescope in order to understand the formation and evolution of stellar clusters in dense clumps…

星系天体物理 · 物理学 2014-11-20 Aya E. Higuchi , Yasutaka Kurono , Masao Saito , Ryohei Kawabe

We map a 50' x 30' area in and around the M17 molecular complex with the French submillimeter balloon-borne telescope PRONAOS, in order to better understand the thermal emission of cosmic dust and the structure of the interstellar medium.…

The mass fraction of dense gas within giant molecular clouds (GMCs) of the Milky Way is investigated using 13CO data from the FCRAO Galactic Plane Surveys and the Bolocam Galactic Plane Survey (BGPS) of 1.1 mm dust continuum emission. A…

星系天体物理 · 物理学 2015-06-18 Andrew J. Battisti , Mark H. Heyer

The interstellar medium of Centaurus A (NGC 5128) has been studied extensively in recent years, using mostly molecular lines tracing low to medium density gas (500 to several $10^3$ cm$^{-3}$). The amount and distribution of the dense…

天体物理学 · 物理学 2007-05-23 W. Wild , A. Eckart

The early-type galaxy NGC 1316 hosts about 10^7 solar masses of dust within a central radius of 5 kpc. These prominent dust structures are believed to have an external origin, which is also a popular interpretation for other dusty…

星系天体物理 · 物理学 2020-11-11 T. Richtler , M. Hilker , E. Iodice

We present the spectroscopic confirmation of a $z=2.45$ proto-cluster. Its member galaxies lie within a radius of 1.4Mpc (physical) on the sky and within $\Delta v \pm 700$km/s along the line of sight. We estimate an overdensity of 10,…

宇宙学与河外天体物理 · 物理学 2015-06-23 C. Diener , S. Lilly , C. Ledoux , G. Zamorani , D. Murphy , M. Bolzonella , P. Capak , O. Ilbert , H. McCracken

We present the results of observations of 1882 sources in the Bolocam Galactic Plane Survey (BGPS) at 1.1 mm with the 10m Heinrich Hertz Telescope simultaneously in HCO+ J=3-2 and N2H+ J=3-2. We detect 77% of these sources in HCO^+ and 51%…

We present the results of ALMA observations of dust continuum emission and molecular rotational lines toward a dense core MC27 (aka L1521F) in Taurus, which is considered to be at a very early stage of star formation. The detailed column…

[Abridged] We imaged a 2' x 2' region of the Orion Nebula cluster in 1.3 mm wavelength continuum emission with the recently commissioned Combined Array for Research in Millimeter Astronomy (CARMA) and with the Submillimeter Array (SMA). Our…

天体物理学 · 物理学 2009-11-13 J. A. Eisner , R. L. Plambeck , John M. Carpenter , S. A. Corder , C. Qi , D. Wilner

We study the gas kinematics and dynamics of the massive protocluster G286.21+0.17 with the Atacama Large Millimeter/submillimeter Array using spectral lines of $C^{18}O$(2-1), $N_2D^+$(3-2), $DCO^+$(3-2) and $DCN$(3-2). On the parsec clump…

星系天体物理 · 物理学 2020-05-19 Yu Cheng , Jonathan C. Tan , Mengyao Liu , Wanggi Lim , Morten Andersen

We have observed the Class 0 protostellar source IRAS 16293-2422 A in the C17O and H2CS lines as well as the 1.3 mm dust continuum with the Atacama Large Millimeter/submillimeter Array at an angular resolution of ~0."1 (14 au). The…

太阳与恒星天体物理 · 物理学 2020-12-09 Yoko Oya , Satoshi Yamamoto

The Orion Nebula Cluster (ONC) is the nearest dense star-forming region at $\sim$400 pc away, making it an ideal target to study the impact of high stellar density and proximity to massive stars (the Trapezium) on protoplanetary disk…

Three new obscured Milky Way clusters were detected as surface density peaks in the 2MASS point source catalog during our on-going search for hidden globular clusters and massive Arches-like star clusters. One more cluster was discovered…

天体物理学 · 物理学 2009-11-10 J. Borissova , P. Pessev , V. D. Ivanov , I. Saviane , R. Kurtev , G. R. Ivanov

We analyze a deep, 100 ksec long, Chandra ACIS observation of NGC2264. We detect 420 sources, 85% of which are associated with known optical and NIR counterparts. More than 90% of these counterparts are NGC2264 members, thus significantly…

天体物理学 · 物理学 2009-11-11 E. Flaccomio , G. Micela , S. Sciortino

The balloon-borne submillimeter instrument PRONAOS has observed one square degree areas towards the Orion and M17 molecular clouds. The 2' - 3.5' resolution maps obtained in four wide wavelength bands between 200 microns and 600 microns,…

天体物理学 · 物理学 2015-06-24 Xavier Dupac , the PRONAOS collaboration

We present a 1.3 mm continuum survey of protoplanetary disks in the 2-3 Myr old cluster, IC348, with the Submillimeter Array. We observed 85 young stellar objects and detected 10 with 1.3 mm fluxes greater than 2 mJy. The brightest source…

太阳与恒星天体物理 · 物理学 2015-05-28 Nicholas Lee , Jonathan P. Williams , Lucas A. Cieza

We present 850-um observations with the SCUBA submillimetre (sub-mm) camera of the central galaxies in seven concentrated clusters of galaxies at redshifts between 0.19 and 0.41. We detect sub-mm emission from the central galaxies in the…

天体物理学 · 物理学 2009-10-31 A. C. Edge , R. J. Ivison , Ian Smail , A. W. Blain , J. -P. Kneib

We present a detailed 1.2 mm continuum and CS spectral line study of a large sample of 69 massive star forming regions in very early stages of evolution, most of them prior to building up an ultracompact HII region. The continuum data show…

天体物理学 · 物理学 2009-11-07 H. Beuther , P. Schilke , K. M. Menten , F. Motte , T. K. Sridharan , F. Wyrowski

Submillimeter/millimeter observations of dusty star-forming galaxies with the Atacama Large Millimeter/submillimeter Array (ALMA) have shown that dust continuum emission generally occurs in compact regions smaller than the stellar…