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Full-Text Articles in Physical Sciences and Mathematics
A Spitzer View Of The Giant Molecular Cloud Mon Ob1/Ngc 2264, Valerie A. Rapson, Judith L. Pipher, R. A. Gutermuth, Megeatj S. Thomas, Thomas S. Allen, Phillip C. Myers, Lori E. Allen
A Spitzer View Of The Giant Molecular Cloud Mon Ob1/Ngc 2264, Valerie A. Rapson, Judith L. Pipher, R. A. Gutermuth, Megeatj S. Thomas, Thomas S. Allen, Phillip C. Myers, Lori E. Allen
Robert A. Gutermuth
We present Spitzer 3.6, 4.5, 5.8, 8.0, and 24 μm images of the Mon OB1 East giant molecular cloud, which contains the young star forming region NGC 2264, as well as more extended star formation. With Spitzer data and Two Micron All Sky Survey photometry, we identify and classify young stellar objects (YSOs) with dusty circumstellar disks and/or envelopes in Mon OB1 East by their infrared-excess emission and study their distribution with respect to cloud material. We find a correlation between the local surface density of YSOs and column density of molecular gas as traced by dust extinction that is …
The Extraordinary Far-Infrared Variation Of A Protostar: Herschel/Pacs Observations Of Lrll54361, Zoltan Balog, James Muzerolle, Kevin Flaherty, Ors H. Detre, Jeroen Bouwmann, Elise Furlan, R. A. Gutermuth, Attila Juhasz, John Bally
The Extraordinary Far-Infrared Variation Of A Protostar: Herschel/Pacs Observations Of Lrll54361, Zoltan Balog, James Muzerolle, Kevin Flaherty, Ors H. Detre, Jeroen Bouwmann, Elise Furlan, R. A. Gutermuth, Attila Juhasz, John Bally
Robert A. Gutermuth
We report Herschel/Photodetector Array Camera and Spectrometer (PACS) photometric observations at 70 μm and 160 μm of LRLL54361—a suspected binary protostar that exhibits periodic (P = 25.34 days) flux variations at shorter wavelengths (3.6 μm and 4.5 μm) thought to be due to pulsed accretion caused by binary motion. The PACS observations show unprecedented flux variation at these far-infrared wavelengths that are well correlated with the variations at shorter wavelengths. At 70 μm the object increases its flux by a factor of six while at 160 μm the change is about a factor of two, consistent with the wavelength dependence …
The Dependence Of Protostellar Lumosity On Environment In The Cygnus-X Star-Forming Complex, E. Kryukova, S.T. Megeath, J.L. Hora, R. A. Gutermuth, S. Bontemps, K. Kraemer, M. Hennemann, N. Schneider, Howard. A. Smith, F. Motte
The Dependence Of Protostellar Lumosity On Environment In The Cygnus-X Star-Forming Complex, E. Kryukova, S.T. Megeath, J.L. Hora, R. A. Gutermuth, S. Bontemps, K. Kraemer, M. Hennemann, N. Schneider, Howard. A. Smith, F. Motte
Robert A. Gutermuth
The Cygnus-X star-forming complex is one of the most active regions of low- and high-mass star formation within 2 kpc of the Sun. Using mid-infrared photometry from the IRAC and MIPS Spitzer Cygnus-X Legacy Survey, we have identified over 1800 protostar candidates. We compare the protostellar luminosity functions of two regions within Cygnus-X: CygX-South and CygX-North. These two clouds show distinctly different morphologies suggestive of dissimilar star-forming environments. We find the luminosity functions of these two regions are statistically different. Furthermore, we compare the luminosity functions of protostars found in regions of high and low stellar density within Cygnus-X and …