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We present the K-band local luminosity function derived froma sample of 1056 bright (K<15) K-selected galaxies from the Hawaii-AAO K-band redshift survey. The Hawaii-AAO K-band redshift survey covers 4 equatorial fields with a total area of…

Astrophysics · Physics 2011-03-10 J. -S. Huang , K. Glazebrook , L. L. Cowie , C. Tinney

Surface brightness fluctuations have been proved to be a very powerful technique to determine the distance and characterize the stellar content in extragalactic systems. Nevertheless, before facing the problem of stellar content in distant…

Astrophysics of Galaxies · Physics 2009-07-22 G. Raimondo

The Galactic HII region luminosity function (LF) is an important metric for understanding global star formation properties of the Milky Way, but only a few studies have been done and all use relatively small numbers of HII regions. We use a…

Astrophysics of Galaxies · Physics 2021-04-08 J. L. Mascoop , L. D. Anderson , Trey. V. Wenger , Z. Makai , W. P. Armentrout , Dana. S. Balser , T. M. Bania

Using the conditional luminosity function -- the luminosity distribution of galaxies in a dark matter halo as a function of the halo mass -- we present an empirical model to describe the redshift evolution of the rest B-band galaxy…

Astrophysics · Physics 2009-11-11 Asantha Cooray

We present the galaxy luminosity function (LF) of the Abell 119 cluster down to $M_r\sim-14$ mag based on deep images in the $u$-, $g$-, and $r$-bands taken by using MOSAIC II CCD mounted on the Blanco 4m telescope at the CTIO. The cluster…

Astrophysics of Galaxies · Physics 2016-05-25 Youngdae Lee , Soo-Chang Rey , Michael Hilker , Yun-Kyeong Sheen , Sukyoung K. Yi

We present 2 um narrow-band images of the core H II region in the Galactic star forming region Sagittarius D. The emission-line images are centered on 2.17 um (Brgamma) and 2.06 um (He I). The H II region appears at the edge of a well…

Astrophysics · Physics 2009-10-30 R. D. Blum , A. Damineli

We present UBVI photometry for 8530 stars in Baade's Window obtained during the OGLE-II microlensing survey. Among these are over one thousand red clump giants. 1391 of them have photometry with errors smaller than 0.04, 0.06, 0.12, and…

We use very deep near-infrared photometry of the Hubble Deep Field South taken with ISAAC/VLT to identify a population of high redshift galaxies with rest- frame optical colors similar to those of nearby galaxies. The galaxies are chosen by…

The color-magnitude diagrams of $\sim 1 \times 10^6$ stars obtained for 19 fields towards the Galactic bulge with the OGLE project reveal a well-defined population of bulge red clump stars. We found that the distributions of the…

Astrophysics · Physics 2007-05-23 K. Z. Stanek , M. Mateo , A. Udalski , M. Szymanski , J. Kaluzny , M. Kubiak , W. Krzeminski

The relationship between galaxy luminosities and rotation rates is studied with total luminosities in the K' band. Extinction problems are essentially eliminated at this band centered at 2.1 micron. A template luminosity-linewidth relation…

Astrophysics · Physics 2009-10-31 B. Rothberg , W. Saunders , R. B. Tully , P. L. Witchalls

K band luminosity functions (LFs) of three, massive, high redshift clusters of galaxies are presented. The evolution of K*, the characteristic magnitude of the LF, is consistent with purely passive evolution, and a redshift of forma tion z…

Astrophysics · Physics 2009-11-10 S. C. Ellis , L. R. Jones

We derive the Ks-band luminosity function (LF) of the z=1.237 massive X-ray luminous cluster of galaxies RDCS J1252.9-2927. Photometric redshifts, derived from deep multi-wavelength BVRIzJKs data, and calibrated using a large subset of…

Astrophysics · Physics 2009-11-10 S. Toft , V. Mainieri , P. Rosati , C. Lidman , R. Demarco , M. Nonino , S. A. Stanford

The population of newly formed massive stars, while still embedded in their parent molecular clouds, is studied on the galactic disk scale. We analyse the luminosity function of IRAS point-like sources, with far-infrared (FIR) colours of…

Astrophysics · Physics 2008-11-26 S. Casassus , L. Bronfman , J. May , L. -A. Nyman

We explore the relationships between the chemistry, ages, and locations of stars in the Galaxy using asteroseismic data from the K2 mission and spectroscopic data from the Apache Point Galactic Evolution Experiment survey. Previous studies…

We report on the star formation histories and extinction in the central kpc region of a sample of starburst galaxies that have similar far infrared (FIR), 10 micron and K-band luminosities as those of the archetype starburst M82. Our study…

Astrophysics · Physics 2009-11-10 Y. D. Mayya , A. Bressan , M. Rodriguez , J. R. Valdes , M. Chavez

A pioneering study showed that the fine structure in the luminosity function (LF) of young star clusters contains information about the evolutionary stage (age) and composition of the stellar population. The notable features include the…

Solar and Stellar Astrophysics · Physics 2021-11-17 Difeng Guo , Alex de Koter , Lex Kaper , Anthony G. A. Brown , Jos H. J. de Bruijne

Whitbourn & Shanks (2014) have reported evidence for a local void underdense by ~15% extending to 150-300h-1Mpc around our position in the Southern Galactic Cap (SGC). Assuming a local luminosity function they modelled K- and r-limited…

Cosmology and Nongalactic Astrophysics · Physics 2016-04-14 J. R. Whitbourn , T. Shanks

Luminosity functions have been determined for star cluster populations in 20 nearby (4-30 Mpc), star-forming galaxies based on ACS source lists generated by the Hubble Legacy Archive. Comparisons are made with other recently generated…

Astrophysics of Galaxies · Physics 2015-06-19 Bradley C. Whitmore , Rupali Chandar , Ariel S. Bowers , Soeren Larsen , Kevin Lindsay , Asna Ansari , Jessica Evans , .

We present near infrared J, H, and K images and K-band spectroscopy in the giant HII region W42. A massive star cluster is revealed; the color-color plot and K-band spectroscopic morphology of two of the brighter objects suggest the…

Astrophysics · Physics 2009-10-31 R. D. Blum , P. S. Conti , A. Damineli
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