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Tiny, dense clumps of sub-solar mass called globulettes form in giant galactic HII regions. The young central clusters compress the surrounding molecular shells which break up into clumps, filaments, and elephant trunks that interact with…

Astrophysics of Galaxies · Physics 2014-09-05 M. M. Mäkelä , L. K. Haikala , G. F. Gahm

We have investigated tiny molecular clumps in the Rosette Nebula. Radio observations were made of molecular line emission from 16 globulettes identified in a previous optical survey. In addtion, we collected images in the NIR broad-band…

Astrophysics of Galaxies · Physics 2015-06-15 Gösta F. Gahm , Carina M. Persson , Minja M. Mäkelä , Lauri K. Haikala

The Rosette Nebula is a young stellar cluster and molecular cloud complex, located at the edge of the southern shell of a middle-aged SNR Monoceros Loop (G205.5+0.5). We revisited the GeV gamma-ray emission towards the Rosette Nebula using…

High Energy Astrophysical Phenomena · Physics 2023-09-19 Jiahao Liu , Bing Liu , Ruizhi Yang

We present Chandra X-ray images of the NGC 2237 young star cluster on the periphery of the Rosette Nebula. We detect 168 X-ray sources, 80% of which have counterparts in USNO, 2MASS, and deep FLAMINGOS images. These constitute the first…

The Rosette molecular cloud is promoted as the archetype of a triggered star-formation site. This is mainly due to its morphology, because the central OB cluster NGC 2244 has blown a circular-shaped cavity into the cloud and the expanding…

The Rosette Complex in the constellation of Monoceros is a magnificent laboratory for the study of star formation. The region presents an interesting scenario, in which an expanding HII region generated by the large OB association NGC 2244…

Astrophysics · Physics 2008-10-07 Carlos G. Román-Zúñiga , Elizabeth A. Lada

The Rosette Nebula is a well-known H II region shaped by the interaction of gas with the OB stars of the NGC 2244 stellar association. Located within the remnant of a giant molecular cloud, it exhibits a complex structure of ionized gas,…

Pillars and globules are present in many high-mass star-forming regions, such as the Eagle nebula (M16) and the Rosette molecular cloud, and understanding their origin will help characterize triggered star formation. The formation…

Stellar kinematics is a powerful tool for understanding the formation process of stellar associations. Here, we present a kinematic study of the young stellar population in the Rosette nebula using the recent Gaia data and high-resolution…

Solar and Stellar Astrophysics · Physics 2021-07-21 Beomdu Lim , Yael Naze , Jongsuk Hong , Byeong-Gon Park , Hyeong-Sik Yun , Hee-Weon Yi , Sunkyung Park , Narae Hwang , Jeong-Eun Lee

We present the first high spatial resolution Chandra X-ray study of NGC 2244, the 2 Myr old stellar cluster immersed in the Rosette Nebula. Over 900 X-ray sources are detected; 77% have optical or FLAMINGOS near-infrared (NIR) stellar…

We present the first high-spatial-resolution X-ray images of two high-mass star forming regions, the Omega Nebula (M 17) and the Rosette Nebula (NGC 2237--2246), obtained with the Chandra X-ray Observatory Advanced CCD Imaging Spectrometer…

Astrophysics · Physics 2009-11-07 L. K. Townsley , E. D. Feigelson , T. Montmerle , P. S. Broos , Y. -H. Chu , G. P. Garmire

We present in this paper the first near infrared study of the young open cluster NGC 2244, which is well known for its partially embedded nature in the Rosette Nebula. Based on the spatially complete 2 Micron All Sky Survey, the young OB…

Astrophysics · Physics 2007-05-23 Jin Zeng Li

Small molecular cloudlets are abundant in many H II regions surrounding newborn stellar clusters. In optical images these so-called globulettes appear as dark silhouettes against the bright nebular background. We have located close to 300…

Solar and Stellar Astrophysics · Physics 2015-06-19 Tiia Grenman , Gösta Gahm

In order to understand the star formation process under the influence of HII regions, we have carried out extensive investigations to well selected star-forming regions which all have been profoundly affected by existing massive O type…

Solar and Stellar Astrophysics · Physics 2015-10-14 Jin-Zeng Li , Jinghua Yuan , Hong-Li Liu , Yuefang Wu , Ya-Fang Huang

The famous Rosette Nebula has an evacuated central cavity formed from the stellar winds ejected from the 2-6 million-year-old co-distant and co-moving central star cluster NGC 2244. However, with upper age estimates of less than 110,000…

Astrophysics of Galaxies · Physics 2018-02-15 C. J. Wareing , J. M. Pittard , N. J. Wright , S. A. E. G. Falle

(Abridged) In this work, we study the 2.8x2.6 deg2 region in the emblematic Rosette Nebula, centred at the young cluster NGC 2244, with the aim of constructing the most reliable candidate member list to date, determining various structural…

Large numbers of small opaque dust clouds - termed 'globulettes' by Gahm et al - have been observed in the H II regions surrounding young stellar clusters. With masses typically in the planetary (or low mass brown dwarf) regime, these…

Earth and Planetary Astrophysics · Physics 2015-06-23 Thomas J. Haworth , Stefano Facchini , Cathie J. Clarke

This is the first of a series of three papers on clustered star formation in the Rosette Molecular Complex. Here we investigate star formation in the interfacing layers between the expanding Rosette Nebula and its surrounding cloud, based…

Astrophysics · Physics 2009-11-10 J. Z. Li , M. D. Smith

As part of the ongoing effort to characterize the low-mass (sub)stellar population in a sample of massive young clusters, we have targeted the ~2 Myr old cluster NGC 2244. The distance to NGC 2244 from Gaia DR2 parallaxes is 1.59 kpc, with…

A review of the properties of the Tarantula Nebula (30 Doradus) in the Large Magellanic Cloud is presented, primarily from the perspective of its massive star content. The proximity of the Tarantula and its accessibility to X-ray through…

Solar and Stellar Astrophysics · Physics 2019-11-11 Paul Crowther
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