On the nature of the peculiar infrared source AFGL 2636

Gehrz, R. D.; Hackwell, J. A.; Grasdalen, G. L.; Merrill, K. M.; Humphreys, R.M.; Williamson, F.; Puetter, Rick; Russell, R. W.; Willner, S. P.

doi:10.1086/112769

Cited by 2 publications

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Two B stars, a B0.0±2.0 and a B5.0±3.0, sit very close together at the center of the bright molecular cloud. The B0.0 star was first classified by Gehrz et al (1980) as a young B1-2 source. A This cluster was first identified by Dutra & Bica (2001), who associated it with the radio H II region G82.6+0.4.…”

Section: Afgl 2636mentioning

confidence: 99%

ASPITZERVIEW OF STAR FORMATION IN THE CYGNUS X NORTH COMPLEX

Beerer

Koenig

Hora

et al. 2010

ApJ

View full text Add to dashboard Cite

We present new images and photometry of the massive star forming complex Cygnus X obtained with the Infrared Array Camera (IRAC) and the Multiband Imaging Photometer for Spitzer (MIPS) on board the Spitzer Space Telescope. A combination of IRAC, MIPS, UKIRT Deep Infrared Sky Survey (UKIDSS), and Two Micron All Sky Survey (2MASS) data are used to identify and classify young stellar objects. Of the 8,231 sources detected exhibiting infrared excess in Cygnus X North, 670 are classified as Class I and 7,249 are classified as Class II. Using spectra from the FAST spectrograph at the Fred L. Whipple Observatory and Hectospec on the MMT, we spectrally typed 536 sources in the Cygnus X complex to identify the massive stars. We find that YSOs tend to be grouped in the neighborhoods of massive B stars (spectral types B0 to B9). We present a minimal spanning tree analysis of clusters in two regions in Cygnus X North. The fraction of infrared excess sources that belong to clusters with ≥10 members is found to be 50-70%. Most Class II objects lie in dense clusters within blown out H II regions, while Class I sources tend to reside in more filamentary structures along the bright-rimmed clouds, indicating possible triggered star formation.

show abstract

Section: Afgl 2636mentioning

confidence: 99%

ASPITZERVIEW OF STAR FORMATION IN THE CYGNUS X NORTH COMPLEX

Beerer

Koenig

Hora

et al. 2010

ApJ

View full text Add to dashboard Cite

show abstract

Unveiling the nature of clusters in the Cygnus region. I. The embedded cluster DB2001–22

Lera

Gamen

Cichowolski

et al. 2021

Monthly Notices of the Royal Astronomical Society

View full text Add to dashboard Cite

The Cygnus region harbours a vast diversity of rich stellar complexes. Hence, it is ideal for studying recently formed stellar clusters, and investigate how the feedback effect and radiation emitted by its massive stars modifies the interstellar medium giving place to induced star forming processes. This is the case of the small and poorly studied cluster DB2001-22. We focus our attention at analysing the cluster and its encompassing region, to distinguish different stellar populations and study their relationship with the surrounding environment. We gleaned literature and databases for optical and IR photometry, astrometry provided by Gaia eDR3 and spectroscopy, and obtained new infrared Gemini spectra of three young stellar objects candidates (cYSOs). Furthermore, we detected two new massive stars: O7 V and B3 V, in the LAMOST database, pointing out that DB2001–22 belongs to a much larger complex that involves an entire bubble structure and houses a richer massive population at a distance of 3.0 kpc. In this sense, DB2001–22 and the H ii region G82.6+0.4 are clearly related. Some observed gas and dust structures seem to have been sculpted by these massive stars. Infrared emission is compatible with a hot ionised gas mixed with warm dust surrounded by a structured photo–dissociation region (PDR) scenario. We found 9 Class I and 56 Class II cYSOs, whose distribution along the PDR and the tips of pillar structures suggests that their formation may have been induced by the action of the earliest stars in the cluster onto their environment.

show abstract

On the nature of the peculiar infrared source AFGL 2636

Cited by 2 publications

References 0 publications

ASPITZERVIEW OF STAR FORMATION IN THE CYGNUS X NORTH COMPLEX

ASPITZERVIEW OF STAR FORMATION IN THE CYGNUS X NORTH COMPLEX

Unveiling the nature of clusters in the Cygnus region. I. The embedded cluster DB2001–22

Contact Info

Product

Resources

About