Results 111 to 120 of about 3,076,442 (185)

Pre-main-sequence isochrones -- II. Revising star and planet formation timescales

, 2013
We have derived ages for 13 young (
Bell, Cameron P. M., Jeffries, R. D., Littlefair, S. P., Mayne, N. J., Naylor, Tim   +4 more
core   +1 more source

The Multiwavelength Extinction Law and Its Variation in the Coalsack Molecular Cloud Based on the Gaia, APASS, SMSS, 2MASS, GLIMPSE, and WISE Surveys

The Astrophysical Journal
Accurate interpretation of observations relies on the interstellar dust extinction law, which also serves as a powerful diagnostic for probing dust properties.
Juan Deng, Shu Wang, Biwei Jiang, He Zhao   +3 more
doaj   +1 more source

JWST Imaging of the Closest Globular Clusters—VI. The Lowest‐Mass Objects in M 4 and the Galactic Bulge

Astronomische Nachrichten, Volume 346, Issue 9, November 2025.
ABSTRACT We present James Webb Space Telescope observations of M 4—the closest globular cluster—that probe the lower Main Sequence down to the hydrogen‐burning limit. The unveiled stellar sequence reaches much fainter luminosities than previously possible, revealing a few extremely red objects that are consistent with brown dwarfs as cool as Teff∼1000K$
L. R. Bedin, R. Gerasimov, A. Calamida, M. Libralato, M. Scalco, D. Nardiello, M. Griggio, D. Apai, J. Anderson, A. Bellini, A. Burgasser   +10 more
wiley   +1 more source

Clusters, Clumps, Dust, and Gas (CCDG) in NGC 1614: Benchmarking Cluster Demographics in Extreme Systems

The Astronomical Journal
Observations of young star clusters in a variety of galaxies have been used to constrain basic properties related to star formation, such as the fraction of stars found in clusters (Γ) and the shape of the cluster mass function (CMF).
Miranda Caputo, Rupali Chandar, Angus Mok, Sean Linden, Paul Goudfrooij, Bradley C. Whitmore   +5 more
doaj   +1 more source

Probing interstellar extinction near the 30 Doradus nebula with red giant stars

, 2013
We have studied the interstellar extinction in a field of 3' x 3' located about 6' SW of 30 Doradus in the Large Magellanic Cloud (LMC). Hubble Space Telescope observations in the U, B, V, I and Halpha bands reveal patchy extinction in this field.
De Marchi, Guido, Girardi, Leo, Panagia, Nino   +2 more
core   +1 more source

Effective Temperatures of BA-Type Supergiants from SED Fitting

Galaxies
Supergiants are luminous post-main-sequence massive stars whose effective temperatures (Teff) are key inputs for stellar evolution and feedback studies.
Shakhida T. Nurmakhametova, Aziza B. Umirova, Nadezhda L. Vaidman, Anatoly S. Miroshnichenko, Serik A. Khokhlov, Azamat A. Khokhlov, Damir T. Agishev, Dina A. Alimbetova   +7 more
doaj   +1 more source

Measuring the galaxy-mass and galaxy-dust correlations through magnification and reddening

, 2009
We present a simultaneous detection of gravitational magnification and dust reddening effects due to galactic halos and large-scale structure. The measurement is based on correlating the brightness of ~85,000 quasars at z>1 with the position of 20 ...
Abazajian, Aguirre, Avgoustidis, Bartelmann, Bianchi, Blanton, Blanton, Branch, Brice Ménard, Conley, Dodelson, Draine, Driver, Fahlman, Ferrara, Fu, Fukugita, Fukugita, Fukugita, Gordon Richards, Hoekstra, Inoue, Jain, Khare, Kowalski, Leauthaud, Lin, Mandelbaum, Mandelbaum, Masataka Fukugita, Massey, Mathis, Miralda Escude, More, Ménard, Ménard, Ménard, Ménard, Mörtsell, Nestor, O’Donnell, Padmanabhan, Parker, Richards, Richards, Richards, Ryan Scranton, Schlegel, Scranton, Scranton, Sheldon, Smith, Stoughton, Tremonti, Weingartner, Weinstein, York, York, Zaritsky, Zibetti   +59 more
core   +1 more source

Dynamical and Photometric Analysis of NGC 146 and King 14: Evidence for a Comoving, Unbound Cluster Pair

The Astronomical Journal
To understand the nature of the NGC 146–King 14 cluster pair, we conducted a detailed photometric, astrometric, and dynamical study using multiwavelength data from Gaia DR3, Pan-STARRS1, WISE, and TESS.
D. Bisht, Ing-Guey Jiang, W. H. Elsanhoury, K. Belwal, D. C. Çinar, A. Raj, Shraddha Biswas, Arvind K. Dattatrey, Geeta Rangwal, Devesh P. Sariya, Mohit Singh Bisht, Alok Durgapal   +11 more
doaj   +1 more source

Photometric distances to young stars in the inner Galactic disk. I. The L = 314$^{o}$ direction

, 2011
The spiral structure of the Milky Way is nowadays receiving renewed attention thanks to the combined efforts of observational campaigns in different wavelength regimes, from the optical to the radio.
Ahumada, Anderson, Baume, Bronfman, Carraro, Carraro, Carraro, Carraro, Dame, Dean, Dias, Efremov, G. Carraro, Georgelin, Hachisuka, Hamuy, Johnson, Kjeldsen, Landolt, Marigo, McClure-Griffiths, Mermilliod, Moitinho, Morgan, Pandey, Patat, Phelps, Piatti, Reed, Reid, Russeil, Russeil, Schlegel, Shorlin, Stetson, Vallée, Vázquez   +36 more
core   +1 more source

Infant Core-collapse Supernovae with Circumstellar Interactions from KMTNet. I. Luminous Transitional Case of KSP-SN-2022c

The Astrophysical Journal
We present BVi multiband high-cadence observations of a Type II supernova (SN) KSP-SN-2022c from a star-forming galaxy at z ≃ 0.041 from its infant to nebular phase. Early light-curve fitting with a single power law is consistent with the first detection
Nan Jiang, Dae-Sik Moon, Yuan Qi Ni, Maria R. Drout, Hong Soo Park, Santiago González-Gaitán, Sang Chul Kim, Youngdae Lee, Ernest Chang   +8 more
doaj   +1 more source