Maps of Dust IR Emission for Use in Estimation of Reddening and CMBR Foregrounds
Reads0
Chats0
TLDR
In this paper, the authors presented a reprocessed composite of the COBE/DIRBE and IRAS/ISSA maps, with the zodiacal foreground and confirmed point sources removed.Abstract:
We present a full sky 100 micron map that is a reprocessed composite of the COBE/DIRBE and IRAS/ISSA maps, with the zodiacal foreground and confirmed point sources removed. Before using the ISSA maps, we remove the remaining artifacts from the IRAS scan pattern. Using the DIRBE 100 micron and 240 micron data, we have constructed a map of the dust temperature, so that the 100 micron map can be converted to a map proportional to dust column density. The result of these manipulations is a map with DIRBE-quality calibration and IRAS resolution.
To generate the full sky dust maps, we must first remove zodiacal light contamination as well as a possible cosmic infrared background (CIB). This is done via a regression analysis of the 100 micron DIRBE map against the Leiden- Dwingeloo map of H_I emission, with corrections for the zodiacal light via a suitable expansion of the DIRBE 25 micron flux. For the 100 micron map, no significant CIB is detected. In the 140 micron and 240 micron maps, where the zodiacal contamination is weaker, we detect the CIB at surprisingly high flux levels of 32 \pm 13 nW/m^2/sr at 140 micron, and 17 \pm 4 nW/m^2/sr at 240 micron (95% confidence). This integrated flux is ~2 times that extrapolated from optical galaxies in the Hubble Deep Field.
The primary use of these maps is likely to be as a new estimator of Galactic extinction. We demonstrate that the new maps are twice as accurate as the older Burstein-Heiles estimates in regions of low and moderate reddening. These dust maps will also be useful for estimating millimeter emission that contaminates CMBR experiments and for estimating soft X-ray absorption.read more
Citations
More filters
Journal ArticleDOI
The least-luminous galaxy: Spectroscopy of the milky way satellite Segue 1
Marla Geha,Beth Willman,Joshua D. Simon,Louis E. Strigari,Evan N. Kirby,David R. Law,Jay Strader +6 more
TL;DR: In this article, Keck/DEIMOS spectroscopy of Segue 1, an ultra-low-luminosity (M_V = −1.5^(+0.6)_(−0.8)) Milky Way satellite companion, is presented.
Journal ArticleDOI
Virgo Cluster Early-Type Dwarf Galaxies with the Sloan Digital Sky Survey. III. Subpopulations: Distributions, Shapes, Origins
TL;DR: In this paper, a quantitative analysis of the 413 Virgo Cluster early-type dwarf galaxies (dEs) with SDSS imaging data was performed, and it was shown that the dE class can be divided into multiple subpopulations that differ significantly in their morphology and clustering properties.
Journal ArticleDOI
A galex ultraviolet imaging survey of galaxies in the local volume
Janice C. Lee,Armando Gil de Paz,Robert C. Kennicutt,Robert C. Kennicutt,Matt Bothwell,Julianne J. Dalcanton,G S J Jose Funes,Benjamin D. Johnson,Shoko Sakai,Evan D. Skillman,Christy Tremonti,Liese van Zee +11 more
TL;DR: In this article, the authors presented results from a GALEX ultraviolet (UV) survey of a complete sample of 390 galaxies within 11 Mpc of the Milky Way, and computed two measures of the global star formation efficiency, the star formation rate (SFR) per unit H I gas mass, and the SFR per unit stellar mass, to illustrate the significant differences that can arise in our understanding of dwarf galaxies when the FUV is used to measure the sFR instead of Hα.
Journal ArticleDOI
Galactoseismology: discovery of vertical waves in the galactic disk
TL;DR: In this paper, the authors present evidence for a Galactic North-South asymmetry in the number density and bulk velocity of solar neighborhood stars and explore the physics of this phenomenon through an analysis of the linearized Boltzmann and Poisson equations.
Journal ArticleDOI
The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: measuring DA and H at z = 0.57 from the baryon acoustic peak in the data release 9 spectroscopic galaxy sample
Lauren Anderson,Éric Aubourg,Stephen Bailey,Florian Beutler,Adam S. Bolton,Jon Brinkmann,Joel R. Brownstein,Chia-Hsun Chuang,Antonio J. Cuesta,Kyle S. Dawson,Daniel J. Eisenstein,Shirley Ho,K. Honscheid,Eyal A. Kazin,D. Kirkby,Marc Manera,Cameron K. McBride,Olga Mena,Robert C. Nichol,Matthew D. Olmstead,Nikhil Padmanabhan,N. Palanque-Delabrouille,Will J. Percival,Francisco Prada,Francisco Prada,Ashley J. Ross,Nicholas P. Ross,Ariel G. Sánchez,Lado Samushia,Lado Samushia,David J. Schlegel,Donald P. Schneider,Hee-Jong Seo,Michael A. Strauss,Daniel Thomas,Jeremy L. Tinker,Rita Tojeiro,Licia Verde,David A. Wake,David H. Weinberg,Xiaoying Xu,Christophe Yèche +41 more
TL;DR: In this article, the angular diameter distance to and Hubble parameter at z = 0:57 from the measurement of the baryon acoustic peak in the correlation of galaxies from the Sloan Digital Sky Survey III Baryon Oscillation Spectroscopic Survey was measured.
Related Papers (5)
Maps of Dust Infrared Emission for Use in Estimation of Reddening and Cosmic Microwave Background Radiation Foregrounds
The relationship between infrared, optical, and ultraviolet extinction
The Sloan Digital Sky Survey: Technical summary
Donald G. York,Jennifer Adelman,John E. Anderson,Scott F. Anderson,James Annis,Neta A. Bahcall,J. A. Bakken,Robert H. Barkhouser,Steven Bastian,E. Berman,William N. Boroski,Steve Bracker,Charlie Briegel,John W. Briggs,Jon Brinkmann,Robert J. Brunner,Scott Burles,Larry N. Carey,Michael A. Carr,Francisco J. Castander,Francisco J. Castander,Bing Chen,Patrick L. Colestock,Andrew J. Connolly,James H. Crocker,István Csabai,István Csabai,Paul C. Czarapata,John Eric Davis,Mamoru Doi,Tom Dombeck,Daniel J. Eisenstein,Nancy Ellman,Brian R. Elms,Brian R. Elms,Michael L. Evans,Xiaohui Fan,Glenn R. Federwitz,Larry Fiscelli,Scott D. Friedman,Joshua A. Frieman,Joshua A. Frieman,Masataka Fukugita,Bruce Gillespie,James E. Gunn,Vijay K. Gurbani,Ernst De Haas,M. Haldeman,Frederick H. Harris,Jeffrey J. E. Hayes,Timothy M. Heckman,Gregory S. Hennessy,Robert B. Hindsley,S. Holm,Donald J. Holmgren,Chi Hao Huang,Charles L. Hull,Don Husby,Shin-Ichi Ichikawa,Takashi Ichikawa,Zěljko Ivezić,Stephen M. Kent,Rita S. J. Kim,E. Kinney,Mark A. Klaene,A. N. Kleinman,Scot Kleinman,Gillian R. Knapp,John Korienek,Richard G. Kron,Richard G. Kron,Peter Z. Kunszt,D. Q. Lamb,Brian C. Lee,R. French Leger,Siriluk Limmongkol,Carl Lindenmeyer,Dan Long,Craig Loomis,Jon Loveday,Rich Lucinio,Robert H. Lupton,Bryan Mackinnon,Bryan Mackinnon,Edward J. Mannery,Paul M. Mantsch,Bruce Margon,Peregrine M. McGehee,Timothy A. McKay,Avery Meiksin,Aronne Merelli,David G. Monet,Jeffrey A. Munn,Vijay K. Narayanan,Thomas Nash,Eric H. Neilsen,Rich Neswold,Heidi Jo Newberg,Heidi Jo Newberg,Robert C. Nichol,T. Nicinski,T. Nicinski,Mario Nonino,Norio Okada,Sadanori Okamura,Jeremiah P. Ostriker,Russell Owen,A. George Pauls,John Peoples,R. Peterson,Don Petravick,Jeffrey R. Pier,Adrian Pope,Ruth Pordes,Angela Prosapio,R. Rechenmacher,Thomas R. Quinn,Gordon T. Richards,Michael Richmond,Claudio H. Rivetta,Constance M. Rockosi,Kurt Ruthmansdorfer,Dale Sandford,David J. Schlegel,Donald P. Schneider,Maki Sekiguchi,G. Sergey,Kazuhiro Shimasaku,Walter A. Siegmund,Stephen A. Smee,J. Allyn Smith,S. A. Snedden,Robert Stone,Chris Stoughton,Michael A. Strauss,Christopher W. Stubbs,Mark SubbaRao,Alexander S. Szalay,István Szapudi,Gyula P. Szokoly,Anirudda R. Thakar,Christy Tremonti,Douglas L. Tucker,Alan Uomoto,Daniel E. Vanden Berk,Michael S. Vogeley,Patrick Waddell,Shu I. Wang,Masaru Watanabe,David H. Weinberg,Brian Yanny,Naoki Yasuda +151 more
The Two Micron All Sky Survey (2MASS)
Michael F. Skrutskie,Michael F. Skrutskie,Roc M. Cutri,R. Stiening,Martin D. Weinberg,Stephen E. Schneider,John M. Carpenter,Chas Beichman,R. Capps,T. Chester,J. Elias,John P. Huchra,James Liebert,C. Lonsdale,David G. Monet,Stephan D. Price,Patrick Seitzer,Thomas H. Jarrett,J. D. Kirkpatrick,John E. Gizis,E. Howard,T. Evans,John W. Fowler,L. Fullmer,Robert L. Hurt,R. M. Light,E. L. Kopan,K. A. Marsh,H. McCallon,R. Tam,S. D. Van Dyk,S. Wheelock +31 more