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| DOI | 10.1088/0004-637X/733/1/50 | ||||
| Año | 2011 | ||||
| Tipo | artículo de investigación |
Citas Totales
Autores Afiliación Chile
Instituciones Chile
% Participación
Internacional
Autores
Afiliación Extranjera
Instituciones
Extranjeras
We present initial results from time-series imaging at infrared wavelengths of 0.9 deg(2) in the Orion Nebula Cluster (ONC). During Fall 2009 we obtained 81 epochs of Spitzer 3.6 and 4.5 mu m data over 40 consecutive days. We extracted light curves with similar to 3% photometric accuracy for similar to 2000 ONC members ranging from several solar masses down to well below the hydrogen-burning mass limit. For many of the stars, we also have time-series photometry obtained at optical (I-c) and/or near-infrared (JK(s)) wavelengths. Our data set can be mined to determine stellar rotation periods, identify new pre-main-sequence eclipsing binaries, search for new substellar Orion members, and help better determine the frequency of circumstellar disks as a function of stellar mass in the ONC. Our primary focus is the unique ability of 3.6 and 4.5 mu m variability information to improve our understanding of inner disk processes and structure in the Class I and II young stellar objects (YSOs). In this paper, we provide a brief overview of the YSOVAR Orion data obtained in Fall 2009 and highlight our light curves for AA-Tau analogs-YSOs with narrow dips in flux, most probably due to disk density structures passing through our line of sight. Detailed follow-up observations are needed in order to better quantify the nature of the obscuring bodies and what this implies for the structure of the inner disks of YSOs.
| Ord. | Autor | Género | Institución - País |
|---|---|---|---|
| 1 | Morales Calderon, M. | Mujer |
CALTECH - Estados Unidos
Spitzer Science Center - Estados Unidos California Institute of Technology - Estados Unidos |
| 2 | Stauffer, John | Hombre |
CALTECH - Estados Unidos
Spitzer Science Center - Estados Unidos California Institute of Technology - Estados Unidos |
| 3 | Hillenbrand, Lynne | Mujer |
CALTECH - Estados Unidos
California Institute of Technology - Estados Unidos |
| 4 | Gutermuth, Robert | Hombre |
Smith Coll - Estados Unidos
Univ Massachusetts - Estados Unidos Smith College - Estados Unidos University of Massachusetts Amherst - Estados Unidos |
| 5 | Song, Inseok | Hombre |
Univ Georgia - Estados Unidos
The University of Georgia - Estados Unidos University of Georgia - Estados Unidos |
| 6 | Rebull, L. | Mujer |
CALTECH - Estados Unidos
Spitzer Science Center - Estados Unidos California Institute of Technology - Estados Unidos |
| 7 | Plavchan, Peter | Hombre |
CALTECH - Estados Unidos
California Institute of Technology - Estados Unidos |
| 8 | Carpenter, John M. | Hombre |
CALTECH - Estados Unidos
California Institute of Technology - Estados Unidos |
| 9 | Whitney, B. A. | Mujer |
Space Sci Inst - Estados Unidos
Space Science Institute - Estados Unidos |
| 10 | Pearce, Logan | Hombre |
CORNELL UNIV - Estados Unidos
BOSTON UNIV - Estados Unidos Cornell University - Estados Unidos Boston University - Estados Unidos |
| 11 | ALVES-DE OLIVEIRA, CATARINA | Mujer |
Observ Grenoble - Francia
Observatoire de Grenoble - Francia Institut de Planétologie et d’Astrophysique de Grenoble (IPAG) - Francia |
| 12 | Winston, Elaine | Mujer |
Univ Exeter - Reino Unido
University of Exeter - Reino Unido |
| 13 | McCaughrean, Mark J. | - |
Univ Exeter - Reino Unido
European Space Agcy - Países Bajos University of Exeter - Reino Unido ESTEC - European Space Research and Technology Centre - Países Bajos |
| 14 | Bouvier, J. | Hombre |
Univ Grenoble 1 - Francia
Verimag - Francia Institut de Planétologie et d’Astrophysique de Grenoble (IPAG) - Francia |
| 15 | Guieu, S. | - |
ESO - Chile
|
| 16 | Vrba, Frederick J. | Hombre |
USN Observ - Estados Unidos
U.S. Naval Observatory - Flagstaff Station - Estados Unidos |
| 17 | Holtzman, J. A. | Hombre |
New Mexico State Univ - Estados Unidos
New Mexico State University Las Cruces - Estados Unidos New Mexico State University - Estados Unidos |
| 18 | Marchis, Franck | Hombre |
UNIV CALIF BERKELEY - Estados Unidos
Carl Sagan Ctr - Estados Unidos University of California, Berkeley - Estados Unidos SETI Institute - Estados Unidos |
| 19 | Hora, J. | Hombre |
Harvard Smithsonian Ctr Astrophys - Estados Unidos
Harvard-Smithsonian Center for Astrophysics - Estados Unidos |
| 20 | Wasserman, Lawrence H. | Hombre |
Lowell Observ - Estados Unidos
Lowell Observatory - Estados Unidos |
| 21 | Terebey, S. | Mujer |
Calif State Univ Los Angeles - Estados Unidos
California State University, Los Angeles - Estados Unidos |
| 22 | Megeath, S. Thomas | - |
Univ Toledo - Estados Unidos
The University of Toledo - Estados Unidos |
| 23 | Guinan, E. F. | Hombre |
Villanova Univ - Estados Unidos
Villanova University - Estados Unidos |
| 24 | Forbrich, Jan | - |
Harvard Smithsonian Ctr Astrophys - Estados Unidos
Harvard-Smithsonian Center for Astrophysics - Estados Unidos |
| 25 | Huelamo, Nuria | Mujer |
CSIC - España
Centro de Astrobiología (CSIC-INTA) - España |
| 26 | Riviere-Marichalar, Pablo | Hombre |
CSIC - España
Centro de Astrobiología (CSIC-INTA) - España |
| 27 | Barrado, D. | Hombre |
CSIC - España
Ctr Astron Hispano Aleman - España Centro de Astrobiología (CSIC-INTA) - España Centro Astronómico Hispano-Alemán - España |
| 28 | Stapelfeldt, Karl R. | Hombre |
CALTECH - Estados Unidos
Jet Propulsion Laboratory - Estados Unidos California Institute of Technology - Estados Unidos |
| 29 | GONZALEZ-HERNANDEZ, JONAY ISAI | - |
Ctr Invest Astron - Venezuela
Centro de Investigaciones de Astronomía - Venezuela |
| 30 | Allen, Lori E. | Mujer |
Natl Opt Astron Observ - Estados Unidos
National Optical Astronomy Observatory - Estados Unidos |
| 31 | Ardila, D. | Hombre |
CALTECH - Estados Unidos
California Institute of Technology - Estados Unidos |
| 32 | Bayos, Amelia | Mujer |
ESO - Chile
European Southern Observatory Santiago - Chile Observatorio Europeo Austral - Chile |
| 33 | Favata, F. | - |
European Space Agcy - Países Bajos
ESTEC - European Space Research and Technology Centre - Países Bajos |
| 34 | James, David J. | Hombre |
Univ Hawaii - Estados Unidos
Natl Opt Astron Observ - Chile University of Hawaii at Hilo - Estados Unidos Cerro Tololo Inter American Observatory - Chile National Optical Astronomy Observatory - Chile |
| 35 | Werner, M. | Hombre |
CALTECH - Estados Unidos
Jet Propulsion Laboratory - Estados Unidos California Institute of Technology - Estados Unidos |
| 36 | Wood, K. | - |
Univ St Andrews - Reino Unido
University of St Andrews - Reino Unido |