Radial distribution of gas and dust in spiral galaxies The case of M99 (NGC4254) and M100 (NGC 4321)

M. Pohlen; L. Cortese; M. W. L. Smith; S. A. Eales; A. Boselli; G. J. Bendo; H. L. Gomez; A. Papageorgiou; R. Auld; M. Baes; J. J. Bock; M. Bradford; V. Buat; N. Castro-Rodriguez; P. Chanial; S. Charlot; L. Ciesla; D. L. Clements; A. Cooray; D. Cormier; E. Dwek; D. Elbaz; M. Galametz; F. Galliano; W. K. Gear; J. Glenn; M. Griffin; S. Hony; K. G. Isaak; L. R. Levenson; N. Lu; S. Madden; B. O'Halloran; K. Okumura; S. Oliver; M. J. Page; P. Panuzzo; T. J. Parkin; I. Perez-Fournon; N. Rangwala; E. E. Rigby; H. Roussel; A. Rykala; N. Sacchi; M. Sauvage; B. Schulz; M. R. P. Schirm; L. Spinoglio; J. A. Stevens; S. Srinivasan; M. Symeonidis; M. Trichas; M. Vaccari; L. Vigroux; C. D. Wilson; H. Wozniak; G. S. Wright; W. W. Zeilinger

doi:10.1051/0004-6361/201014554

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Radial distribution of gas and dust in spiral galaxies The case of M99 (NGC4254) and M100 (NGC 4321)

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Radial distribution of gas and dust in spiral galaxies The case of M99 (NGC4254) and M100 (NGC 4321)

M. Pohlen, L. Cortese, M. W. L. Smith, S. A. Eales, A. Boselli, G. J. Bendo, H. L. Gomez, A. Papageorgiou, R. Auld, M. Baes, …

Astronomy and astrophysics (Berlin), Vol.518(4), 72

08/2010

DOI: https://doi.org/10.1051/0004-6361/201014554

Résumé

Astronomy & Astrophysics

Physical Sciences

Science & Technology

By combining Herschel-SPIRE data with archival Spitzer, Hi, and CO maps, we investigate the spatial distribution of gas and dust in the two famous grand-design spirals M99 and M100 in the Virgo cluster. Thanks to the unique resolution and sensitivity of the Herschel-SPIRE photometer, we are for the first time able to measure the distribution and extent of cool, submillimetre (submm)-emitting dust inside and beyond the optical radius. We compare this with the radial variation in both the gas mass and the metallicity. Although we adopt a model-independent, phenomenological approach, our analysis provides important insights. We find the dust extending to at least the optical radius of the galaxy and showing breaks in its radial profiles at similar positions as the stellar distribution. The colour indices f350/f500 and f250/f350 decrease radially consistent with the temperature decreasing with radius. We also find evidence of an increasing gas to dust ratio with radius in the outer regions of both galaxies.

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Titre: Radial distribution of gas and dust in spiral galaxies The case of M99 (NGC4254) and M100 (NGC 4321)
Créateurs - sans rôle: M. Pohlen - Cardiff Univ, Sch Phys & Astron, Cardiff CF24 3AA, S Glam, Wales
L. Cortese - Cardiff Univ, Sch Phys & Astron, Cardiff CF24 3AA, S Glam, Wales
M. W. L. Smith - Cardiff Univ, Sch Phys & Astron, Cardiff CF24 3AA, S Glam, Wales
S. A. Eales - Cardiff Univ, Sch Phys & Astron, Cardiff CF24 3AA, S Glam, Wales
A. Boselli - CNRS, UMR6110, Lab Astrophys Marseille, F-13388 Marseille, France
G. J. Bendo - Univ London Imperial Coll Sci Technol & Med, Blackett Lab, Astrophys Grp, London SW7 2AZ, England
H. L. Gomez - Cardiff Univ, Sch Phys & Astron, Cardiff CF24 3AA, S Glam, Wales
A. Papageorgiou - Cardiff Univ, Sch Phys & Astron, Cardiff CF24 3AA, S Glam, Wales
R. Auld - Cardiff Univ, Sch Phys & Astron, Cardiff CF24 3AA, S Glam, Wales
M. Baes - Univ Ghent, Sterrenkundig Observatorium, B-9000 Ghent, Belgium
J. J. Bock - California Institute of Technology
M. Bradford - CALTECH, Dept Astron, Pasadena, CA 91125 USA
V. Buat - CNRS, UMR6110, Lab Astrophys Marseille, F-13388 Marseille, France
N. Castro-Rodriguez - Inst Astrofis Canarias, E-38200 San Cristobal la Laguna, Spain
P. Chanial - CEA, Lab AIM, Irfu SAp, F-91191 Gif Sur Yvette, France
S. Charlot - Univ Paris 06, CNRS, UMR7095, Inst Astrophys Paris, F-75014 Paris, France
L. Ciesla - CNRS, UMR6110, Lab Astrophys Marseille, F-13388 Marseille, France
D. L. Clements - Univ London Imperial Coll Sci Technol & Med, Blackett Lab, Astrophys Grp, London SW7 2AZ, England
A. Cooray - Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA
D. Cormier - CEA, Lab AIM, Irfu SAp, F-91191 Gif Sur Yvette, France
E. Dwek - NASA, Goddard Space Flight Ctr, Observat Cosmol Lab, Greenbelt, MD 20771 USA
S. A. Eales
D. Elbaz - CEA, Lab AIM, Irfu SAp, F-91191 Gif Sur Yvette, France
M. Galametz - CEA, Lab AIM, Irfu SAp, F-91191 Gif Sur Yvette, France
F. Galliano - CEA, Lab AIM, Irfu SAp, F-91191 Gif Sur Yvette, France
W. K. Gear - Cardiff Univ, Sch Phys & Astron, Cardiff CF24 3AA, S Glam, Wales
J. Glenn - Univ Colorado, Dept Astrophys & Planetary Sci, CASA CB 389, Boulder, CO 80309 USA
M. Griffin - Cardiff Univ, Sch Phys & Astron, Cardiff CF24 3AA, S Glam, Wales
S. Hony - CEA, Lab AIM, Irfu SAp, F-91191 Gif Sur Yvette, France
K. G. Isaak - Cardiff Univ, Sch Phys & Astron, Cardiff CF24 3AA, S Glam, Wales
L. R. Levenson - CALTECH, Dept Astron, Pasadena, CA 91125 USA
N. Lu - CALTECH, Dept Astron, Pasadena, CA 91125 USA
S. Madden - CEA, Lab AIM, Irfu SAp, F-91191 Gif Sur Yvette, France
B. O'Halloran - Univ London Imperial Coll Sci Technol & Med, Blackett Lab, Astrophys Grp, London SW7 2AZ, England
K. Okumura - CEA, Lab AIM, Irfu SAp, F-91191 Gif Sur Yvette, France
S. Oliver - Univ Sussex, Dept Phys & Astron, Ctr Astron, Brighton BN1 9RH, E Sussex, England
M. J. Page - Univ Coll London, Mullard Space Sci Lab, Dorking RH5 6NT, Surrey, England
P. Panuzzo - CEA, Lab AIM, Irfu SAp, F-91191 Gif Sur Yvette, France
T. J. Parkin - McMaster Univ, Dept Phys & Astron, Hamilton, ON L8S 4M1, Canada
I. Perez-Fournon - Inst Astrofis Canarias, E-38200 San Cristobal la Laguna, Spain
N. Rangwala - Univ Colorado, Dept Astrophys & Planetary Sci, CASA CB 389, Boulder, CO 80309 USA
E. E. Rigby - Univ Nottingham, Sch Phys & Astron, Nottingham NG7 2RD, England
H. Roussel - Univ Paris 06, CNRS, UMR7095, Inst Astrophys Paris, F-75014 Paris, France
A. Rykala - Cardiff Univ, Sch Phys & Astron, Cardiff CF24 3AA, S Glam, Wales
N. Sacchi - INAF, Ist Fis Spazio Interplanetario, I-00133 Rome, Italy
M. Sauvage - CEA, Lab AIM, Irfu SAp, F-91191 Gif Sur Yvette, France
B. Schulz - CALTECH, Infrared Proc & Anal Ctr, Pasadena, CA 91125 USA
M. R. P. Schirm - McMaster Univ, Dept Phys & Astron, Hamilton, ON L8S 4M1, Canada
M. W. L. Smith
L. Spinoglio - INAF, Ist Fis Spazio Interplanetario, I-00133 Rome, Italy
J. A. Stevens - Univ Hertfordshire, Ctr Astrophys Res, Sci & Technol Res Ctr, Hatfield AL10 9AB, Herts, England
S. Srinivasan - Univ Paris 06, CNRS, UMR7095, Inst Astrophys Paris, F-75014 Paris, France
M. Symeonidis - Univ Coll London, Mullard Space Sci Lab, Dorking RH5 6NT, Surrey, England
M. Trichas - Univ London Imperial Coll Sci Technol & Med, Blackett Lab, Astrophys Grp, London SW7 2AZ, England
M. Vaccari - University of Padua
L. Vigroux - Univ Paris 06, CNRS, UMR7095, Inst Astrophys Paris, F-75014 Paris, France
C. D. Wilson - McMaster Univ, Dept Phys & Astron, Hamilton, ON L8S 4M1, Canada
H. Wozniak - Univ Strasbourg, CNRS, UMR 7550, Observ Astron Strasbourg, F-67000 Strasbourg, France
G. S. Wright - Royal Observ, UK Astron Technol Ctr, Edinburgh EH9 3HJ, Midlothian, Scotland
W. W. Zeilinger - Univ Vienna, Inst Astron, A-1180 Vienna, Austria
Détails de publication: Astronomy and astrophysics (Berlin), Vol.518(4), 72
Éditeur: Edp Sciences S A
Nombre de pages: 5
Note de subvention: CSA (Canada) CNES (France); Centre National D'etudes Spatiales STFC (UK); UK Research & Innovation (UKRI); Science & Technology Facilities Council (STFC) ST/G003874/1 / UK Space Agency PP/E001173/1; ST/G002630/1; ST/F002858/1; ST/H001530/1 / STFC; UK Research & Innovation (UKRI); Science & Technology Facilities Council (STFC) NAOC (China) CNRS (France); Centre National de la Recherche Scientifique (CNRS) ASI (Italy); Agenzia Spaziale Italiana (ASI) ST/H001530/1; ST/G002630/1; ST/F002858/1; PP/E001181/1; PP/E001173/1 / Science and Technology Facilities Council; UK Research & Innovation (UKRI); Science & Technology Facilities Council (STFC) MCINN (Spain); Spanish Government
Identifiants: 99155752009311
Unité académique: Laboratoire Univers et Particules de Montpellier - LUPM; Observatoire de REcherche Montpelliérain de l'Environnement - OREME
Langue: English
Type de ressource: Journal article