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相关论文: Variation of the ultraviolet extinction law across…

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There is growing observational evidence of dust coagulation in the dense filaments within molecular clouds. Infrared observations show that the dust grains size distribution gets shallower and the relative fraction of small to large dust…

星系天体物理 · 物理学 2017-04-21 L. Beitia-Antero , Ana I. Gómez de Castro

Interstellar dust extinction law is essential for interpreting observations. In this work, we investigate the ultraviolet (UV)--mid-infrared (IR) extinction law of the Taurus molecular cloud and its possible variations. We select 504,988…

星系天体物理 · 物理学 2023-08-07 Ling Li , Shu Wang , Xiaodian Chen , Qingquan Jiang

We have constructed a far-ultraviolet (FUV) continuum map of the Taurus-Auriga-Perseus complex, one of the largest local associations of dark clouds, by merging the two data sets of GALEX and FIMS, which made observations at similar…

星系天体物理 · 物理学 2015-06-12 Tae-Ho Lim , Kyoung-Wook Min , Kwang-Il Seon

We explore variations of the dust extinction law of the Milky Way by selecting stars from the Swift/UVOT Serendipitous Source Catalogue, cross-matched with Gaia DR2 and 2MASS to produce a sample of 10,452 stars out to ~4kpc with photometry…

星系天体物理 · 物理学 2021-05-12 I. Ferreras , M. Tress , G. Bruzual , S. Charlot , M. Page , V. Yershov , P. Kuin , D. Kawata , M. Cropper

(Abridged) The effective extinction law (attenuation behavior) in galaxies in the emitted ultraviolet is well known only for actively star-forming objects and combines effects of the grain properties, fine structure in the dust…

星系天体物理 · 物理学 2015-06-18 William C. Keel , Anna M. Manning , Benne W. Holwerda , Chris J. Lintott , Kevin Schawinski

We present Spitzer images of the Taurus Complex (TC) and take advantage of the sensitivity and spatial resolution of the observations to characterize the diffuse IR emission across the cloud. This work highlights evidence of dust evolution…

We characterize the influence that inclination has on the shape and normalization in average dust attenuation curves derived from a sample of ~10,000 local star-forming galaxies. To do this we utilize aperture-matched multi-wavelength data…

星系天体物理 · 物理学 2017-12-27 A. J. Battisti , D. Calzetti , R. -R. Chary

We have reanalyzed the Large Magellanic Cloud's (LMC) ultraviolet (UV) extinction using data from the IUE final archive. Our new analysis takes advantage of the improved signal--to--noise of the IUE NEWSIPS reduction, the exclusion of stars…

天体物理学 · 物理学 2009-10-31 K. A. Misselt , Geoffrey C. Clayton , Karl D. Gordon

We present a sensitive, multiwavelength submillimeter continuum survey of 153 young stellar objects in the Taurus-Auriga star formation region. The submillimeter detection rate is 61% to a completeness limit of ~10 mJy (3-sigma) at 850…

天体物理学 · 物理学 2008-11-26 Sean M. Andrews , Jonathan P. Williams

We present a study of the polarizing power of the dust in cold dense regions (dark clouds) compared to that of dust in the general interstellar medium (ISM). Our study uses new polarimetric, optical, and spectral classification data for 36…

天体物理学 · 物理学 2009-10-30 Hector G. Arce , Alyssa A. Goodman , Pierre Bastien , Nadine Manset , Mathew Sumner

The attenuation of starlight by interstellar dust is investigated in a sample of low redshift, disk-dominated star-forming galaxies using photometry from GALEX and SDSS. By considering broadband colors as a function of galaxy inclination we…

宇宙学与河外天体物理 · 物理学 2015-05-18 Charlie Conroy , David Schiminovich , Michael R. Blanton

We develop a novel approach to measure dust attenuation properties of galaxies, including the dust opacity, shape of the attenuation curve and the strength of the 2175{\AA} absorption feature. From an observed spectrum, the method uses a…

We present a study of the detailed distribution of extinction in a region of the Taurus dark cloud complex. Our study uses new BVR images of the region, spectral classification data for 95 stars, and IRAS Sky Survey Atlas (ISSA) 60 and 100…

天体物理学 · 物理学 2009-10-31 Hector G. Arce , Alyssa A. Goodman

We analyze the dust attenuation properties of a volume-limited, optically-selected sample of normal star forming galaxies in nearby clusters as observed by GALEX. The internal attenuation is estimated using three independent indicators,…

天体物理学 · 物理学 2016-08-30 L. Cortese , A. Boselli , V. Buat , G. Gavazzi , S. Boissier , A. Gil de Paz , M. Seibert , B. F. Madore , D. C. Martin

Variations in the attenuation law have a significant impact on observed spectral energy distributions for galaxies. As one important observational property for galaxies at ultraviolet and infrared wavelength bands, the correlation between…

星系天体物理 · 物理学 2014-06-20 Ye-Wei Mao , Xu Kong , Lin Lin

Fundamental properties of the extinction curve, like the slope in the rest-frame UV and the presence/absence of a broad absorption excess centred at 2175A (the UV bump), are investigated for a sample of 108 massive, star-forming galaxies at…

天体物理学 · 物理学 2007-05-23 Stefan Noll , Daniele Pierini , Maurilio Pannella , Sandra Savaglio

Dust is a fundamental component of the interstellar medium within galaxies, as dust grains are highly efficient absorbers of ultraviolet (UV) and optical photons. Accurately quantifying this obscuration is crucial for interpreting galaxy…

We present a map of the three-dimensional (3D) distribution of dust in the Orion complex. Orion is the closest site of high-mass star formation, making it an excellent laboratory for studying the interstellar medium and star formation. We…

星系天体物理 · 物理学 2018-08-15 S. Rezaei Kh. , C. A. L. Bailer-Jones , E. F. Schlafly , M. Fouesneau

Maps of estimated dust column density in molecular clouds are usually assumed to reliably trace the total gas column density structure. In this work we present results showing a clear discrepancy between the dust and the gas distribution in…

We observed the L1506 filament, which is located in the Taurus molecular complex, with the Herschel PACS and SPIRE instruments. Our aim is to prove the variation in grain properties along the entire length of the filament. In particular, we…

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