中文
相关论文

相关论文: Herschel-Planck dust optical depth and column dens…

200 篇论文

We used Herschel Hi-GAL survey data to determine whether massive young stellar objects (MYSOs) are resolved at 70$\mu$m and to study their envelope density distribution. Our analysis of three relatively isolated sources in the l=30{\deg}…

星系天体物理 · 物理学 2015-06-24 F. A. Olguin , M. G. Hoare , H. E. Wheelwright , S. J. Clay , W. -J. de Wit , I. Rafiq , S. Pezzuto , S. Molinari

The relation between ices in the envelopes and disks surrounding YSOs and those in the quiescent interstellar medium is investigated. For a sample of 31 stars behind isolated dense cores, ground-based and Spitzer spectra and photometry in…

Context. Using observations to deduce dust properties, grain size distribution, and physical conditions in molecular clouds is a highly degenerate problem. Aims. The coreshine phenomenon, a scattering process at 3.6 and 4.5 $\mu$m that…

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…

We present an analysis of IRAS maps of five molecular clouds: Orion, Ophiuchus, Perseus, Taurus, and Lupus. For the classification and description of these astrophysical maps, we use a newly developed technique which considers all maps of a…

天体物理学 · 物理学 2009-10-22 Jennifer J. Wiseman , Fred C. Adams

ABRIDGED: Context: HI and CO large scale surveys of the Milky Way trace the diffuse atomic clouds and the dense shielded regions of molecular hydrogen clouds. However, until recently, we have not had spectrally resolved C+ surveys to…

星系天体物理 · 物理学 2015-06-18 W. D. Langer , T. Velusamy , J. L. Pineda , K. Willacy , P. F. Goldsmith

We present direct evidence for anomalous microwave emission in the Perseus molecular cloud, which shows a clear rising spectrum from 11 to 17 GHz in the data of the COSMOSOMAS experiment. By extending the frequency coverage using WMAP maps…

The recent detection of dust emission in Complex C, the largest High-Velocity Cloud (HVC) on the sky, opens a very interesting perspective for Planck. The HVC dust temperature determined using IRAS and Spitzer observations is low (T~10.7 K)…

We have analyzed the properties of dust in the high galactic latitude translucent cloud Lynds 1780 using ISOPHOT maps at 100 and 200 micrometers and raster scans at 60, 80, 100, 120, 150 and 200 micrometers. In far-infrared (FIR) emission,…

天体物理学 · 物理学 2009-11-11 M. Ridderstad , M. Juvela , K. Lehtinen , D. Lemke , T. Liljestrom

We revised the treatment of interstellar dust in the KOSMA-\tau\ PDR model code to achieve a consistent description of the dust-related physics in the code. The detailed knowledge of the dust properties is then used to compute the dust…

天体物理仪器与方法 · 物理学 2012-11-16 M. Röllig , R. Szczerba , V. Ossenkopf , C. Glück

The Planck and Herschel missions are currently measuring the farIR-mm emission of dust, which combined with existing IR data, will for the first time provide the full SED of the galactic ISM dust emission with an unprecedented sensitivity…

星系天体物理 · 物理学 2015-05-20 M. Compiegne , L. Verstraete , A. Jones , J. -P. Bernard , F. Boulanger , N. Flagey , J. Le Bourlot , D. Paradis , N. Ysard

We use the PPMAP (Point Process MAPping) algorithm to re-analyse the \textit{Herschel} and SCUBA-2 observations of the L1688 and L1689 sub-regions of the Ophiuchus molecular cloud. PPMAP delivers maps with high resolution (here $14''$,…

星系天体物理 · 物理学 2021-05-12 A. D. P. Howard , A. P. Whitworth , M. J. Griffin , K. A. Marsh , M. W. L. Smith

We present a large-scale millimeter continuum map of the Ophiuchus molecular cloud. Nearly 11 square degrees, including all of the area in the cloud with visual extinction more than 3 magnitudes, was mapped at 1.1 mm with Bolocam on the…

Infrared photometry in the J (1.2 microns), H (1.7 microns), Ks (2.2 microns) bands from the 2MASS catalogue and in the W1 (3.4 microns), W2 (4.6 microns), W3 (12 microns), W4 (22 microns) bands from the WISE catalogue is used to reveal the…

星系天体物理 · 物理学 2019-10-25 George Gontcharov

We are studying the column density distribution of all nearby giant molecular clouds. As part of this project we generated several all sky extinction maps. They are calculated using the median near infrared colour excess technique applied…

星系天体物理 · 物理学 2009-11-13 J. Rowles , D. Froebrich

We present a comparison of SCUBA-2 850-$\mu$m and Herschel 70--500-$\mu$m observations of the L1495 filament in the Taurus Molecular Cloud with the goal of characterising the SCUBA-2 Gould Belt Survey (GBS) data set. We identify and…

We use the Sternberg et al. (2014) theory for interstellar atomic to molecular (HI-to-H$_2$) conversion to analyze HI-to-H$_2$ transitions in five (low-mass) star-forming and dark regions in the Perseus molecular cloud, B1, B1E, B5, IC348,…

星系天体物理 · 物理学 2015-08-17 Shmuel Bialy , Amiel Sternberg , Min-Young Lee , Franck Le Petit , Evelyne Roueff

A deep, wide-field, near-infrared imaging survey was used to construct an extinction map of the southeastern part of the California Molecular Cloud (CMC) with $\sim$ 0.5 arc min resolution. The same region was also surveyed in the…

星系天体物理 · 物理学 2015-05-27 S. Kong , C. J. Lada , E. A. Lada , C. Román-Zúñiga , J. H. Bieging , M. Lombardi , J. Forbrich , J. F. Alves

Models of pure gas-phase chemistry in well-shielded regions of molecular clouds predict relatively high levels of molecular oxygen, O2, and water, H2O. Contrary to expectation, the space missions SWAS and Odin found only very small amounts…

We report the results of a joint analysis of data from BICEP2/Keck Array and Planck. BICEP2 and Keck Array have observed the same approximately 400 deg$^2$ patch of sky centered on RA 0h, Dec. $-57.5\deg$. The combined maps reach a depth of…

宇宙学与河外天体物理 · 物理学 2015-04-16 BICEP2/Keck , Planck Collaborations , : , P. A. R. Ade , N. Aghanim , Z. Ahmed , R. W. Aikin , K. D. Alexander , M. Arnaud , J. Aumont , C. Baccigalupi , A. J. Banday , D. Barkats , R. B. Barreiro , J. G. Bartlett , N. Bartolo , E. Battaner , K. Benabed , A. Benoît , A. Benoit-Lévy , S. J. Benton , J. -P. Bernard , M. Bersanelli , P. Bielewicz , C. A. Bischoff , J. J. Bock , A. Bonaldi , L. Bonavera , J. R. Bond , J. Borrill , F. R. Bouchet , F. Boulanger , J. A. Brevik , M. Bucher , I. Buder , E. Bullock , C. Burigana , R. C. Butler , V. Buza , E. Calabrese , J. -F. Cardoso , A. Catalano , A. Challinor , R. -R. Chary , H. C. Chiang , P. R. Christensen , L. P. L. Colombo , C. Combet , J. Connors , F. Couchot , A. Coulais , B. P. Crill , A. Curto , F. Cuttaia , L. Danese , R. D. Davies , R. J. Davis , P. de Bernardis , A. de Rosa , G. de Zotti , J. Delabrouille , J. -M. Delouis , F. -X. Désert , C. Dickinson , J. M. Diego , H. Dole , S. Donzelli , O. Doré , M. Douspis , C. D. Dowell , L. Duband , A. Ducout , J. Dunkley , X. Dupac , C. Dvorkin , G. Efstathiou , F. Elsner , T. A. Enßlin , H. K. Eriksen , E. Falgarone , J. P. Filippini , F. Finelli , S. Fliescher , O. Forni , M. Frailis , A. A. Fraisse , E. Franceschi , A. Frejsel , S. Galeotta , S. Galli , K. Ganga , T. Ghosh , M. Giard , E. Gjerløw , S. R. Golwala , J. González-Nuevo , K. M. Górski , S. Gratton , A. Gregorio , A. Gruppuso , J. E. Gudmundsson , M. Halpern , F. K. Hansen , D. Hanson , D. L. Harrison , M. Hasselfield , G. Helou , S. Henrot-Versillé , D. Herranz , S. R. Hildebrandt , G. C. Hilton , E. Hivon , M. Hobson , W. A. Holmes , W. Hovest , V. V. Hristov , K. M. Huffenberger , H. Hui , G. Hurier , K. D. Irwin , A. H. Jaffe , T. R. Jaffe , J. Jewell , W. C. Jones , M. Juvela , A. Karakci , K. S. Karkare , J. P. Kaufman , B. G. Keating , S. Kefeli , E. Keihänen , S. A. Kernasovskiy , R. Keskitalo , T. S. Kisner , R. Kneissl , J. Knoche , L. Knox , J. M. Kovac , N. Krachmalnicoff , M. Kunz , C. L. Kuo , H. Kurki-Suonio , G. Lagache , A. Lähteenmäki , J. -M. Lamarre , A. Lasenby , M. Lattanzi , C. R. Lawrence , E. M. Leitch , R. Leonardi , F. Levrier , A. Lewis , M. Liguori , P. B. Lilje , M. Linden-Vørnle , M. López-Caniego , P. M. Lubin , M. Lueker , J. F. Macías-Pérez , B. Maffei , D. Maino , N. Mandolesi , A. Mangilli , M. Maris , P. G. Martin , E. Martínez-González , S. Masi , P. Mason , S. Matarrese , K. G. Megerian , P. R. Meinhold , A. Melchiorri , L. Mendes , A. Mennella , M. Migliaccio , S. Mitra , M. -A. Miville-Deschênes , A. Moneti , L. Montier , G. Morgante , D. Mortlock , A. Moss , D. Munshi , J. A. Murphy , P. Naselsky , F. Nati , P. Natoli , C. B. Netterfield , H. T. Nguyen , H. U. Nørgaard-Nielsen , F. Noviello , D. Novikov , I. Novikov , R. O'Brient , R. W. Ogburn , A. Orlando , L. Pagano , F. Pajot , R. Paladini , D. Paoletti , B. Partridge , F. Pasian , G. Patanchon , T. J. Pearson , O. Perdereau , L. Perotto , V. Pettorino , F. Piacentini , M. Piat , D. Pietrobon , S. Plaszczynski , E. Pointecouteau , G. Polenta , N. Ponthieu , G. W. Pratt , S. Prunet , C. Pryke , J. -L. Puget , J. P. Rachen , W. T. Reach , R. Rebolo , M. Reinecke , M. Remazeilles , C. Renault , A. Renzi , S. Richter , I. Ristorcelli , G. Rocha , M. Rossetti , G. Roudier , M. Rowan-Robinson , J. A. Rubiño-Martín , B. Rusholme , M. Sandri , D. Santos , M. Savelainen , G. Savini , R. Schwarz , D. Scott , M. D. Seiffert , C. D. Sheehy , L. D. Spencer , Z. K. Staniszewski , V. Stolyarov , R. Sudiwala , R. Sunyaev , D. Sutton , A. -S. Suur-Uski , J. -F. Sygnet , J. A. Tauber , G. P. Teply , L. Terenzi , K. L. Thompson , L. Toffolatti , J. E. Tolan , M. Tomasi , M. Tristram , M. Tucci , A. D. Turner , L. Valenziano , J. Valiviita , B. Van Tent , L. Vibert , P. Vielva , A. G. Vieregg , F. Villa , L. A. Wade , B. D. Wandelt , R. Watson , A. C. Weber , I. K. Wehus , M. White , S. D. M. White , J. Willmert , C. L. Wong , K. W. Yoon , D. Yvon , A. Zacchei , A. Zonca