Results 11 to 20 of about 40,509 (299)

PHANGS–JWST First Results: The Influence of Stellar Clusters on Polycyclic Aromatic Hydrocarbons in Nearby Galaxies

The Astrophysical Journal Letters, 2023
We present a comparison of theoretical predictions of dust continuum and polycyclic aromatic hydrocarbon (PAH) emission with new JWST observations in three nearby galaxies: NGC 628, NGC 1365, and NGC 7496.
Daniel A. Dale, Médéric Boquien, Ashley T. Barnes, Francesco Belfiore, Frank Bigiel, Yixian Cao, Rupali Chandar, Jérémy Chastenet, Mélanie Chevance, Sinan Deger, Oleg V. Egorov, Kathryn Grasha, Brent Groves, Hamid Hassani, Kiana F. Henny, Ralf S. Klessen, Kathryn Kreckel, J. M. Diederik Kruijssen, Kirsten L. Larson, Janice C. Lee, Adam K. Leroy, Daizhong Liu, Eric J. Murphy, Erik Rosolowsky, Karin Sandstrom, Eva Schinnerer, Jessica Sutter, David A. Thilker, Elizabeth J. Watkins, Bradley C. Whitmore, Thomas G. Williams   +30 more
doaj   +1 more source

OB Associations [PDF]

, 1999
Since the previous (1990) edition of this meeting enormous progress in the field of OB associations has been made. Data from X-ray satellites have greatly advanced the study of the low-mass stellar content of associations, while astrometric data from the
Blaauw, A., Brown, Anthony G. A., de Bruijne, J. H. J., de Zeeuw, P. T., Hoogerwerf, R.   +4 more
core   +3 more sources

SPYGLASS. IV. New Stellar Survey of Recent Star Formation within 1 kpc

The Astrophysical Journal, 2023
Young stellar populations provide a powerful record that traces millions of years of star formation history in the solar neighborhood. Using a revised form of the SPYGLASS young star identification methodology, we produce an expanded census of nearby ...
Ronan Kerr, Adam L. Kraus, Aaron C. Rizzuto   +2 more
doaj   +1 more source

New Stellar Associations in M31 [PDF]

Symposium - International Astronomical Union, 1986
About twenty years ago van den Bergh (1964) recognized 188 OB associations in the Andromeda Nebula. He used plates taken by the 52-inches Tautenburgh Schmidt telescope in GDR. Later on Richter (1971) added 7 new associations in the south-western periphery of M31. Now we have the opportunity to continue the search of stellar associations in M31 with the
Yu. N. Efremov, G. R. Ivanov, N. S. Nikolov   +2 more
openaire   +1 more source

Stellar Associations in the LMC [PDF]

Symposium - International Astronomical Union, 1999
The stellar associations are defined as loose unbound concentrations of young stars with a bright OB stellar component, mainly located at the most recent star forming regions, representing the smallest units in the hierarchy of stellar systems in galaxies.
E. Kontizas, M. Kontizas, D. Gouliermis, A. Dapergolas, R. Korakitis, D. H. Morgan   +5 more
openaire   +1 more source

The Stellar Association LH 99 [PDF]

Symposium - International Astronomical Union, 1991
The stellar content of this stellar association, related to the supernova remnant N 157B = SNR 0538-691, was up to now unknown, except for three Wolf-Rayet stars and a few red supergiant candidates. A thorough study based on UBV photometry, spectra of 95 stars and nebular spectra will be described elsewhere (see also Schild et al. in these Proceedings).
M.C. Lortet, G. Testor, H. Schild
openaire   +1 more source

OB stellar associations in the Large Magellanic Cloud: Survey of young stellar systems [PDF]

Astronomy & Astrophysics, 2003
The method developed by Gouliermis et al. (2000, Paper I), for the detection and classification of stellar systems in the LMC, was used for the identification of stellar associations and open clusters in the central area of the LMC. This method was applied on the stellar catalog produced from a scanned 1.2m UK Schmidt Telescope Plate in U with a field ...
Gouliermis, D., Kontizas, M., Kontizas, E., Korakitis, R.   +3 more
openaire   +3 more sources

Stellar associations in M81 [PDF]

Monthly Notices of the Royal Astronomical Society, 1992
A catalogue of 180 stellar associations in M81 has been compiled using two plates taken with the 2-m Rozhen telescope. The catalogue gives the positions of associations, their mean angular sizes and H II identifications. It is found that the frequency distribution of associations in M81 is similar to that in M33, and their characteristic length is ≃ 80
openaire   +1 more source

A Population of Dipper Stars from the Transiting Exoplanet Survey Satellite Mission

The Astrophysical Journal Supplement Series, 2022
Dipper stars are a classification of young stellar objects that exhibit dimming variability in their light curves, dropping in brightness by 10%–50%, likely induced by occultations due to circumstellar disk material.
Benjamin K. Capistrant, Melinda Soares-Furtado, Andrew Vanderburg, Marina Kounkel, Saul A. Rappaport, Mark Omohundro, Brian P. Powell, Robert Gagliano, Thomas Jacobs, Veselin B. Kostov, Martti H. Kristiansen, Daryll M. LaCourse, Allan R. Schmitt, Hans Martin Schwengeler, Ivan A. Terentev   +14 more
doaj   +1 more source

Stellar Associations and their Field East of LMC 4 in the Large Magellanic Cloud [PDF]

, 2001
We report about the stellar content and the luminosity and mass functions of three stellar associations and their field located on the north-east edge of the super-bubble LMC 4 in the Large Magellanic Cloud.Comment: To be appeared in the meeting ...
de Boer, K. S., Gouliermis, D., Keller, S. C., Kontizas, E., Kontizas, M.   +4 more
core   +2 more sources