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The Oph region revisited with Gaia EDR3
Natalie Grasser, Sebastian Ratzenböck, João Alves +10
Context. Young and embedded stellar populations are important probes of the star formation process. Paradoxically, we have a better census of nearby embedded young populations than…
VISION - Vienna survey in Orion. III. Young stellar objects in Orion A
Josefa E. Großschedl, João Alves, Paula S. Teixeira +14
We have extended and refined the existing young stellar object (YSO) catalogs for the Orion A molecular cloud, the closest massive star-forming region to Earth. This updated catalo…
A global correlation linking young stars, clouds, and galaxies. Towards a unified view of star formation
I. Mendigutía, C. J. Lada, R. D. Oudmaijer
(abridged) The star formation rate (SFR) linearly correlates with the amount of dense gas mass (Mdg) involved in the formation of stars both for distant galaxies and clouds in our…
Herschel-Planck dust optical depth and column density maps - II. Perseus
E. Zari, M. Lombardi, J. Alves +2
We present optical depth and temperature maps of the Perseus molecular cloud, obtained combining dust emission data from the Herschel and Planck satellites and 2MASS/NIR dust extin…
Smoke in the Pipe Nebula: dust emission and grain growth in the starless core FeSt 1-457
Jan Forbrich, Charles J. Lada, Marco Lombardi +2
(abridged) Methods: We derive maps of submillimeter dust optical depth and effective dust temperature from Herschel data that were calibrated against Planck. After calibration, we…
Molecular clouds have power-law probability distribution functions
Marco Lombardi, João Alves, Charles J. Lada
In this Letter we investigate the shape of the probability distribution of column densities (PDF) in molecular clouds. Through the use of low-noise, extinction-calibrated \textit{H…
Some like it cold: molecular emission and effective dust temperatures of dense cores in the Pipe Nebula
Jan Forbrich, Karin Öberg, Charles J. Lada +4
(abridged) [...] Methods: In a continued study of the molecular core population of the Pipe Nebula, we present a molecular-line survey of 52 cores. Previous research has shown a va…
Herschel-Planck dust optical-depth and column-density maps: I. Method description and results for Orion
Marco Lombardi, Herve Bouy, Joao Alves +1
We present high-resolution, high dynamic range column-density and color-temperature maps of the Orion complex using a combination of Planck dust-emission maps, Herschel dust-emissi…
Spitzer observations of NGC2264: The nature of the disk population
P. S. Teixeira, C. J. Lada, M. Marengo +1
NGC2264 is a young cluster with a rich circumstellar disk population which makes it an ideal target for studying the evolution of stellar clusters. Our goal is to study its star fo…
The Age, Stellar Content and Star Formation Timescale of the B59 Dense Core
Kevin R. Covey, Charles J. Lada, Carlos Roman-Zuniga +3
We have used moderate resolution, near-infrared spectra from the SpeX spectrograph on the NASA Infrared Telescope facility to characterize the stellar content of Barnard 59 (B59),…
Nothing to hide: An X-ray survey for young stellar objects in the Pipe Nebula
Jan Forbrich, Bettina Posselt, Kevin R. Covey +1
We have previously analyzed sensitive mid-infrared observations to establish that the Pipe Nebula has a very low star-formation efficiency. That study focused on YSOs with excess i…
Disentangling protostellar evolutionary stages in clustered environments using Spitzer-IRS spectra and comprehensive SED modeling
Jan Forbrich, Achim Tappe, Thomas Robitaille +5
When studying the evolutionary stages of protostars that form in clusters, the role of any intracluster medium cannot be neglected. High foreground extinction can lead to situation…
A Spitzer Census of Star Formation Activity in the Pipe Nebula
Jan Forbrich, Charles J. Lada, August A. Muench +2
The Pipe Nebula, a large nearby molecular cloud lacks obvious signposts of star formation in all but one of more than 130 dust extinction cores that have been identified within it.…
IRS Characterization of a Debris Disk around an M-type star in NGC2547
Paula S. Teixeira, Charles J. Lada, Kenneth Wood +2
We present 5 to 15 micron Spitzer Infrared Spectrograph (IRS) low resolution spectral data of a candidate debris disk around an M4.5 star identified as a likely member of the ~40 M…
The Diskionary: A Glossary of Terms Commonly Used for Disks and Related Objects, First Edition
Neal Evans, Nuria Calvet, Lucas Cieza +6
Based on a panel discussion at the meeting "New Light on Young Stars: Spitzer's View of Circumstellar Disks", we provide some definitions of common usage of terms describing disks…