Circumstellar Disks in Very Young Embedded Clusters

Autor(en)

Naibí Mariñas, Elizabeth A. Lada, Paula Stella Viveiros Teixeira, Charles J. Lada

Abstrakt

We used FLAMINGOS near-IR photometry and spectroscopy and Spitzer mid-IR photometry to study disk fractions in the 1 to 2 Myr old NGC2264 clusters. We find that stars with masses < 0.3 solar masses have lower disk fractions than stars of solar mass or higher at these early ages. We also find that most disks disappear within the first 4 Myr, which is consistent with previous studies of disk lifetimes. Our study suggests that either some very low mass stars form without disks or that their disks are less massive and/or colder than predicted from models and not detected with Spitzer/Flamingos sensitivities.

Organisation(en)

Institut für Astrophysik

Externe Organisation(en)

University of Florida, Gainesville, University of North Florida, Harvard-Smithsonian Center for Astrophysics

Seiten

165-166

Anzahl der Seiten

2

DOI

https://doi.org/10.1017/S1743921313008223

Publikationsdatum

01-2014

ÖFOS 2012

103003 Astronomie, 103004 Astrophysik

Schlagwörter

ASJC Scopus Sachgebiete

Public Health, Environmental and Occupational Health, Astronomy and Astrophysics, Nutrition and Dietetics, Medicine (miscellaneous), Space and Planetary Science

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/3534231e-9b3f-4542-b38f-39391c9c8c54