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(Abridged) Photometry of archival Spitzer observations of the Large Magellanic Cloud (LMC) are used to search for young stellar objects (YSOs). Simple mid-infrared selection criteria were used to exclude most normal and evolved stars and…

Solar and Stellar Astrophysics · Physics 2015-05-13 Robert A. Gruendl , You-Hua Chu

We present a comprehensive multi-wavelength study of the star-forming region NGC 1893 to explore the effects of massive stars on low-mass star formation. Using near-infrared colours, slitless spectroscopy and narrow-band $H\alpha$…

Astrophysics · Physics 2009-11-13 Saurabh Sharma , A. K. Pandey , D. K. Ojha , W. P. Chen , S. K. Ghosh , B. C. Bhatt , Maheswar , G. , Ram Sagar

The census of open clusters in the Milky Way is in a never-before seen state of flux. Recent works have reported hundreds of new open clusters thanks to the incredible astrometric quality of the Gaia satellite, but other works have also…

Astrophysics of Galaxies · Physics 2021-02-17 Emily L. Hunt , Sabine Reffert

Young massive clusters (YMCs) are the most compact, high-mass stellar systems still forming at the present day. The precursor clouds to such systems are, however, rare due to their large initial gas mass reservoirs and rapid dispersal…

Young Stellar Objects (YSOs) in the inner Galactic region $10^0 < l < 15^0$ and $-1^0 < b < 1^0$ are studied using GLIMPSE images and GLIMPSE data catalogue. A total number of 1107 Class I and 1566 Class II sources are identified in this…

Solar and Stellar Astrophysics · Physics 2013-07-22 B Bhavya , Annapurni Subramaniam , V C Kuriakose

We present $UBVI_C$ CCD photometry of the young open cluster Be 59 with the aim to study the star formation scenario in the cluster. The radial extent of the cluster is found to be $\sim$ 10 arcmin (2.9 pc). The interstellar extinction in…

Astrophysics · Physics 2009-11-13 A. K. Pandey , Saurabh Sharma , K. Ogura , D. K. Ojha , W. P. Chen , B. C. Bhatt , S. K. Ghosh

We combine Gaia DR3 5-parameter astrometry with calibrated radial velocities for 23 nearby (<1 kpc) young (<60 Myr) clusters, with membership lists from Cantat-Gaudin et al. (2020). We characterise the plane-of-sky structure of the clusters…

Astrophysics of Galaxies · Physics 2026-04-10 Joseph J. Armstrong , Jonathan C. Tan

We investigate the star formation activity in a young star forming cluster embedded at the edge of the RCW 41 HII region. As a complementary goal, we aim at demonstrating the gain provided by Wide-Field Adaptive Optics instruments to study…

Solar and Stellar Astrophysics · Physics 2015-04-22 B. Neichel , M. R. Samal , H. Plana , A. Zavagno , A. Bernard , T. Fusco

We report the discovery of 25 new open clusters resulting from a search in dense low galactic latitude fields. We also provide, for the first time, structural and astrophysical parameters for the new findings and 34 other recently…

Solar and Stellar Astrophysics · Physics 2020-06-24 Filipe A. Ferreira , J. F. C. Santos , W. J. B. Corradi , F. F. S. Maia , M. S. Angelo

The James Webb Space Telescope (JWST) has detected, through gravitational lensing, several young massive star clusters (YMCs), which are considered as relevant building blocks of high redshift galaxies. In this work, we show how a…

Accretion in young stellar objects (YSOs) is at least partially episodic, i.e. periods with high accretion rates ('bursts') are interspersed by quiescent phases. These bursts manifest themselves as eruptive variability. Here we present a…

Solar and Stellar Astrophysics · Physics 2015-06-12 Aleks Scholz , Dirk Froebrich , Kenneth Wood

The Spitzer Space Telescope mapped the Perseus molecular cloud complex with IRAC and MIPS as part of the c2d Spitzer Legacy project. This paper combines the observations from both instruments giving an overview of low-mass star formation…

Solar and Stellar Astrophysics · Physics 2015-08-06 Kaisa E. Young , Chadwick H. Young , Shih-Ping Lai , Michael M. Dunham , Neal J. Evans

It is well known that most of the stars form in rich clusters. However, recent $Spitzer$ observations have shown that a significant number of stars also form in distributed mode, origin of which is not well understood. In this work, we aim…

Solar and Stellar Astrophysics · Physics 2019-02-20 Neelam Panwar , Manash R. Samal , A. K. Pandey , H. P . Singh , Saurabh Sharma

We present $UBVI_c$ CCD photometry of the young open cluster Stock 8 with the aim to study the basic properties and star formation scenario in this region. The radius of the cluster is found to be $\sim 6^{\prime}$ ($\sim 3.6$ pc) and the…

We present Spitzer IRAC and MIPS observations of the star-forming region containing intermediate-mass young stellar object (YSO) AFGL 490. We supplement these data with near-IR 2MASS photometry and with deep SQIID observations off the…

Solar and Stellar Astrophysics · Physics 2015-06-04 L. C. Masiunas , R. A. Gutermuth , J. L. Pipher , S. T. Megeath , P. C. Myers , L. E. Allen , H. M. Kirk , G. G. Fazio

We present a study on the clustering of a stellar mass selected sample of 18,482 galaxies with stellar masses M*>10^10M(sun) at redshifts 0.4<z<2.0, taken from the Palomar Observatory Wide-field Infrared Survey. We examine the clustering…

Cosmology and Nongalactic Astrophysics · Physics 2011-02-15 S. Foucaud , C. J. Conselice , W. G. Hartley , K. P. Lane , S. P. Bamford , O. Almaini , K. Bundy

The properties of young stellar clusters (YSCs) in M33, identified from the center out to about twice the size of the bright star-forming disk,are investigated. We find 915 discrete MIR sources as far as the extent of the warped HI disk,…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-30 Saurabh Sharma , Edvige Corbelli , Carlo Giovanardi , Leslie K. Hunt , Francesco Palla

Young stellar clusters are believed to inherit the spatial distribution like hierarchical structures of their natal molecular cloud during their formation. However, the change of the structures between the cloud and the young clusters is…

Solar and Stellar Astrophysics · Physics 2022-10-05 Jia Sun , Robert A. Gutermuth , Hongchi Wang , Shuinai Zhang , Min Long

In this work we have carried out an in-depth analysis of the young stellar content in the W3 GMC. The YSO population was identified and classified in the IRAC/MIPS color-magnitude space according to the `Class' scheme and compared to other…

Astrophysics of Galaxies · Physics 2011-11-29 A. Rivera-Ingraham , P. G. Martin , D. Polychroni , T. J. T. Moore

We present a survey of 130 Galactic and extragalactic young massive clusters (YMCs, $10^4 < M/\msun < 10^8$, $10 < t/{\rm Myr} < 1000$) with integrated spectroscopy or resolved stellar photometry (40 presented here and 90 from the…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-17 N. Bastian , I. Cabrera-Ziri , B. Davies , S. S. Larsen
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