Infrared Dust Emission in the Outer Disk of M51 | Zendy

Michele D. Thornley | Zendy; J. Braine | Zendy; E. Gardan | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Infrared Dust Emission in the Outer Disk of M51

Author(s) -

Michele D. Thornley,

J. Braine,

E. Gardan

Publication year - 2006

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/509719

Subject(s) - astrophysics , physics , infrared , star formation , spitzer space telescope , infrared excess , astronomy , galaxy , telescope

We examine faint infrared emission features detected in Spitzer SpaceTelescope images of M51, which are associated with atomic hydrogen in the outerdisk and tidal tail at R greater than R_25 (4.9', ~14 kpc at d=9.6 Mpc). Theinfrared colors of these features are consistent with the colors of dustassociated with star formation in the bright disk. However, the star formationefficiency (as a ratio of star formation rate to neutral gas mass) implied inthe outer disk is lower than that in the bright disk of M51 by an order ofmagnitude, assuming a similar relationship between infrared emission and starformation rate in the inner and outer disks.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research