scholarly journals EXTREME DUST DISKS IN Arp 220 AS REVEALED BY ALMA

2014 ◽  
Vol 789 (2) ◽  
pp. L36 ◽  
Author(s):  
C. D. Wilson ◽  
N. Rangwala ◽  
J. Glenn ◽  
P. R. Maloney ◽  
L. Spinoglio ◽  
...  
Keyword(s):  
2003 ◽  
Vol 593 (2) ◽  
pp. L101-L104 ◽  
Author(s):  
Michiel R. Hogerheijde ◽  
Doug Johnstone ◽  
Isamu Matsuyama ◽  
Ray Jayawardhana ◽  
James Muzerolle

2009 ◽  
Vol 5 (H15) ◽  
pp. 815-815
Author(s):  
Antonio S. Hales ◽  
Michael J. Barlow ◽  
Janet E. Drew ◽  
Yvonne C. Unruh ◽  
Robert Greimel ◽  
...  

AbstractThe Isaac Newton Photometric H-Alpha Survey (IPHAS) provides (r′-Hα)-(r′-i′) colors, which can be used to select AV0-5 Main Sequence star candidates (age~20-200 Myr). By combining a sample of 23050 IPHAS-selected A-type stars with 2MASS, GLIMPSE and MIPSGAL photometry we searched for mid-infrared excesses attributable to dusty circumstellar disks. Positional cross-correlation yielded a sample of 2692 A-type stars, of which 0.6% were found to have 8-μm excesses above the expected photospheric values. The low fraction of main sequence stars with mid-IR excesses found in this work indicates that dust disks in the terrestrial planet zone of Main Sequence intermediate mass stars are rare. Dissipation mechanisms such as photo-evaporation, grain growth, collisional grinding or planet formation could possibly explain the depletion of dust detected in the inner regions of these disks.


2002 ◽  
Vol 46 (2-7) ◽  
pp. 187-192 ◽  
Author(s):  
A.R. Martel ◽  
S.A. Baum ◽  
W.B. Sparks ◽  
J.A. Biretta ◽  
G. Verdoes Kleijn ◽  
...  

Author(s):  
Sean M. Andrews ◽  
Jonathan P. Williams
Keyword(s):  

2009 ◽  
Author(s):  
Guillermo A. González ◽  
Antonio C. Gutiérrez-Piñeres ◽  
Paolo A. Ospina ◽  
Kerstin E. Kunze ◽  
Marc Mars ◽  
...  
Keyword(s):  

2006 ◽  
Vol 460 (3) ◽  
pp. L43-L47 ◽  
Author(s):  
V. Piétu ◽  
A. Dutrey ◽  
S. Guilloteau ◽  
E. Chapillon ◽  
J. Pety
Keyword(s):  

2012 ◽  
Vol 200 (1) ◽  
pp. 3 ◽  
Author(s):  
Jana Bilíková ◽  
You-Hua Chu ◽  
Robert A. Gruendl ◽  
Kate Y. L. Su ◽  
Orsola De Marco

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