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相关论文: Star formation in Perseus: II. SEDs, classificatio…

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We present a search for outflows towards 51 submillimetre cores in Perseus. With consistently derived outflow properties from a large homogeneous dataset within one molecular cloud we can investigate further the mass dependence and time…

天体物理学 · 物理学 2009-11-13 J. Hatchell , G. A. Fuller , J. S. Richer

We present an unbiased census of starless cores in Perseus, Serpens, and Ophiuchus, assembled by comparing large-scale Bolocam 1.1 mm continuum emission maps with Spitzer c2d surveys. We use the c2d catalogs to separate 108 starless from 92…

天体物理学 · 物理学 2009-11-13 Melissa L. Enoch , Neal J. Evans , Anneila I. Sargent , Jason Glenn , Erik Rosolowsky , Philip Myers

We present an unbiased census of deeply embedded protostars in Perseus, Serpens, and Ophiuchus, assembled by combining large-scale 1.1 mm Bolocam continuum and Spitzer Legacy surveys. We identify protostellar candidates based on their…

天体物理学 · 物理学 2014-11-18 Melissa L. Enoch , Neal J. Evans , Anneila I. Sargent , Jason Glenn

In this paper, we present the results of CARMA continuum and spectral line observations of the dense core Per-Bolo 45. Although this core has previously been classified as starless, we find evidence for an outflow and conclude that Per-Bolo…

星系天体物理 · 物理学 2015-06-03 Scott Schnee , James Di Francesco , Melissa Enoch , Rachel Friesen , Doug Johnstone , Sarah Sadavoy

Context. The classification of young stellar objects (YSOs) is typically done using the infrared spectral slope or bolometric temperature, but either can result in contamination of samples. More accurate methods to determine the…

太阳与恒星天体物理 · 物理学 2016-01-27 M. T. Carney , U. A. Yıldız , J. C. Mottram , E. F. van Dishoeck , J. Ramchandani , J. K. Jørgensen

Class 0 sources are objects representing the earliest phase of the protostellar evolution. Since they are highly obscured by an extended dusty envelope, these objects emit mainly in the far-infrared to millimetre wavelength range. The…

天体物理学 · 物理学 2007-05-23 M. Rengel , D. Froebrich , S. Wolf , J. Eisloeffel

We present a complete survey of current star formation in the Perseus molecular cloud, made at 850 and 450 micron with SCUBA at the JCMT. Covering 3 deg^2, this submillimetre continuum survey for protostellar activity is second in size only…

天体物理学 · 物理学 2007-05-23 J. Hatchell , J. S. Richer , G. A. Fuller , C. J. Qualtrough , E. F. Ladd , C. J. Chandler

(Abridged) Protostellar systems evolve from prestellar cores, through the deeply embedded stage and then disk-dominated stage, before they end up on the main sequence. Knowing how much time a system spends in each stage is crucial for…

太阳与恒星天体物理 · 物理学 2018-10-24 L. E. Kristensen , M. M. Dunham

We present the results of our investigation of the star-forming potential in the Perseus star-forming complex. We build on previous starless core, protostellar core, and young stellar object (YSO) catalogs from Spitzer, Herschel, and SCUBA…

星系天体物理 · 物理学 2017-04-26 Seyma Mercimek , Philip C. Myers , Katherine I. Lee , Sarah I. Sadavoy

Centimeter continuum emission from protostars offers insight into the innermost part of the outflows, as shock-ionized gas produces free-free emission. We observed a complete population of Class 0 and I protostars in the Perseus molecular…

We use PACS and SPIRE continuum data at 160 um, 250 um, 350 um, and 500 um from the Herschel Gould Belt Survey to sample seven clumps in Perseus: B1, B1-E, B5, IC348, L1448, L1455, and NGC1333. Additionally, we identify and characterize the…

We present a census of molecular outflows across four active regions of star formation in the Perseus molecular cloud (NGC 1333, IC348/HH211, L1448 and L1455), totalling an area of over 1000 sq arcmin. This is one of the largest surveys of…

星系天体物理 · 物理学 2015-05-19 Emily I. Curtis , John S. Richer , Jonathan J. Swift , Jonathan P. Williams

We use 1-4" (300-1200 au) resolution 12CO(2-1) data from the MASSES (Mass Assembly of Stellar Systems and their Evolution with the SMA) project to measure the projected opening angles of 46 protostellar outflows in the Perseus Molecular…

We have carried out a survey of optically-selected dark clouds using the bolometer array SCUBA on the James Clerk Maxwell Telescope, at 850 microns wavelength. The survey covers a total of 0.5 square degrees and is unbiased with reference…

天体物理学 · 物理学 2009-11-07 Anja E. Visser , John S. Richer , Claire J. Chandler

(Abridged) In this paper, we present analyses of images taken with the Herschel ESA satellite from 70mu to 500mu. We first constructed column density and dust temperature maps. Next, we identified compact cores in the maps, and characterize…

Dense gas in molecular clouds is an important signature of ongoing and future star formation. We identify and track dense cores in the STARFORGE simulations, following the core evolution from birth through dispersal by stellar feedback for…

星系天体物理 · 物理学 2025-02-24 Stella S. R. Offner , Josh Taylor , Michael Y. Grudic

Protostellar evolution, following the formation of the protostar is becoming reasonably well characterized, but the evolution from a prestellar core to a protostar is not well known, although the first hydrostatic core (FHSC) must be a…

太阳与恒星天体物理 · 物理学 2016-11-02 E. Koumpia , F. F. S. van der Tak , W. Kwon , J. J. Tobin , G. A. Fuller , R. Plume

In this paper we present the results of a high resolution (5") CARMA and SZA survey of the 3mm continuum emission from 11 of the brightest (at 1.1mm) starless cores in the Perseus molecular cloud. We detect 2 of the 11 cores, both of which…

We present model spectral energy distributions, colors, polarization, and images for an evolutionary sequence of a low-mass protostar from the early collapse stage (Class 0) to the remnant disk stage (Class III). We find a substantial…

天体物理学 · 物理学 2010-04-08 Barbara A. Whitney , Kenneth Wood , J. E. Bjorkman , Martin Cohen

We searched the literature to obtain a complete list of known Class0 sources. A list of 95 confirmed or candidate objects was compiled. To the best of our knowledge, all published broad-band observations from 1mu to 3.5mm have been…

天体物理学 · 物理学 2009-11-10 Dirk Froebrich
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