Astronomy and Astrophysics – Astrophysics
Scientific paper
2000-04-26
Science, Vol 288, p649. 28 April 2000
Astronomy and Astrophysics
Astrophysics
The article is here and on press
Scientific paper
10.1126/science.288.5466.649
The formation and evolution of young low mass stars are characterized by important processes of mass loss and accretion ocurring in the innermost regions of their placentary circumstellar disks. Because of the large obscuration of these disks at optical and infrared wavelengths in the early protostellar stages (Class 0 Sources), they were previously detected only at radio wavelengths using interferometric techniques. We have detected with the Infrared Space Observatory (ISO) the mid-infrared emission associated with the Class 0 protostar VLA1 in the HH1-2 region located in the Orion nebula. The emission arises in the three wavelength windows at 5.3, 6.6 and 7.5 micras where the absorption due to ices and silicates has a local minimum that exposes the central parts of the youngest protostellar systems to mid-infrared investigations. The mid-infrared emission arises from a central source with 4 AU diameter at an averaged temperature of 700 K, deeply embedded in a dense region with a visual extinction of Av=80-100mag.
Cabrit Silvie
Cernicharo Jose
Cesarsky D.
Dartois Emmanuel
Gonzalez-Alfonso Eduardo
No associations
LandOfFree
Windows through the Dusty Disks Surrounding the Youngest Low Mass Protostellar Objects does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Windows through the Dusty Disks Surrounding the Youngest Low Mass Protostellar Objects, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Windows through the Dusty Disks Surrounding the Youngest Low Mass Protostellar Objects will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-42791