English
Related papers

Related papers: Photometric study of IC 2156

200 papers

We present three color, BVI maps of the Small Magellanic Cloud. The maps contain precise photometric and astrometric data for about 2.2 million stars from the central regions of the SMC bar covering ~2.4 square degrees on the sky. Mean…

Astrophysics · Physics 2007-05-23 A. Udalski , M. Szymanski , M. Kubiak , G. Pietrzynski , P. Wozniak , K. Zebrun

We present a new tool for the photometric estimate of stellar masses in distant galaxies. The observed SEDs are fitted by combining single stellar populations, with different SFRs and amounts of dust extinction. This approach gives us the…

Paper I of this series described the design of a CCD-based photometric system that is optimized for ground-based measurements of the size of the Balmer discontinuity in stellar spectra. This "uBVI" system combines the Thuan-Gunn u filter…

Astrophysics · Physics 2009-11-10 Michael H. Siegel , Howard E. Bond

(Abriged)This work studies in more detail the stellar population, including its photometric properties and characteristics, in the rarely studied southern Galactic globular cluster NGC 1261. We focus on the brighter sequences of the…

Astrophysics of Galaxies · Physics 2015-05-18 V. Kravtsov , G. Alcaino , G. Marconi , F. Alvarado

We present here the detailed optical and infra-red photometric analysis of the open star cluster IC 361. On studying the radial density profile, radial extent of the cluster is found to be 8.0 +/- 0.5 arcmin. The basic physical parameters…

Solar and Stellar Astrophysics · Physics 2021-06-08 Gireesh C. Joshi

The Carnegie-Irvine Galaxy Survey (CGS) is a long-term program to investigate the photometric and spectroscopic properties of a statistically complete sample of 605 bright (B_T < 12.9 mag), southern (Dec. < 0) galaxies using the facilities…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-03 Luis C. Ho , Zhao-Yu Li , Aaron J. Barth , Marc S. Seigar , Chien Y. Peng

We have been doing a photometric and astrometric sample survey programme on Schmidt plates in a few selected directions in the Galaxy with an aim to study galactic stellar populations. In order to calibrate Schmidt plates photometrically,…

The astrophysical parameters of four unstudied open star cluster candidates - Harvard 9, Ivanov 2, Ivanov 7, and Ivanov 9 - have been estimated for the first time using the PPMXL database. The stellar density distributions and…

Astrophysics of Galaxies · Physics 2015-06-19 A. L. Tadross , R. Bendary

Dynamical state of galaxy clusters is closely related to their observational properties in X-ray, optical and radio wavelengths. We develop a method to diagnose the substructure and dynamical state of galaxy clusters by using photometric…

Cosmology and Nongalactic Astrophysics · Physics 2013-10-16 Z. L. Wen , J. L. Han

The main aim of this paper is to study the astrophysical behavior of open clusters' properties along the Milky Way Galaxy. Near-IR JHK (2MASS) photometry has been used for getting a homogeneous Catalog of 263 open clusters' parameters,…

Astrophysics of Galaxies · Physics 2014-06-03 A. L. Tadross

We present a detailed analysis of the photometric properties of galaxies in the cluster \A2163B at redshift z~0.2. R-, I- and K-band structural parameters, (half light radius r_e, mean surface brightness <mi>_e within r_e and Sersic index…

Astrophysics · Physics 2009-11-10 F. La Barbera , P. Merluzzi , G. Busarello , M. Massarotti , A. Mercurio

In this work we present detailed photometric results of the trapezium like galactic nearby OB clusters NGC 1502 and NGC 2169 carried out at the University Observatory Jena. We determined absolute $BVRI$ magnitudes of the mostly resolved…

Solar and Stellar Astrophysics · Physics 2015-05-13 M. M. Hohle , T. Eisenbeiss , M. Mugrauer , F. Freistetter , M. Moualla , R. Neuhäuser , S. Rätz , T. O. B. Schmidt , N. Tetzlaff , M. Vaňko

A release of multicolor broad band (BVRI) photometry for a subsample of 44 isolated spirals drawn from the Catalogue of Isolated Galaxies (CIG) is presented. Total magnitudes and colors at various circular apertures, as well as some global…

Astrophysics · Physics 2009-06-23 H. Hernandez-Toledo , J. Zendejas-Dominguez , V. Avila-Reese

Context. Since the first publication of the Gaia catalogue a new view of our Galaxy has arrived. Its astrometric and photometric information has improved the precision of the physical parameters of open star clusters obtained from them.…

Astrophysics of Galaxies · Physics 2024-08-28 Jeison Alfonso , Alejandro García-Varela , Katherine Vieira

The Sloan Digital Sky Survey (SDSS) is collecting photometry and intermediate resolution spectra for ~ 10**5 stars in the thick-disk and stellar halo of the Milky Way. This massive dataset can be used to infer the properties of the stars…

Astrophysics · Physics 2007-05-23 C. Allende Prieto , T. C. Beers , Y. Li , H. J. Newberg , R. Wilhelm , B. Yanny

We present the results of CCD $UBV$ photometric and spectroscopic observations of the open cluster NGC 225. In order to determine the structural parameters of NGC 225, we calculated the stellar density profile in the cluster's field. We…

Astrophysics of Galaxies · Physics 2016-10-05 S. Bilir , Z. F. Bostanci , T. Yontan , T. Guver , V. Bakis , T. Ak , S. Ak , E. Paunzen , Z. Eker

Photometric data from the Xuyi Schmidt Telescope Photometric Survey of the Galactic Anticentre (XSTPS-GAC) and the Sloan Digital Sky Survey (SDSS) are used to derive the global structure parameters of the smooth components of the Milky Way.…

We investigate the photometric properties of 456 bright galaxies using imaging data recorded during the commissioning phase of the Sloan Digital Sky Survey (SDSS). Morphological classification is carried out by correlating results of…

Astrophysics · Physics 2009-07-09 K. Shimasaku , M. Fukugita , M. Doi , M. Hamabe , T. Ichikawa , S. Okamura , M. Sekiguchi , N. Yasuda

New BVRI broad-band photometry and astrometry are presented for the globular cluster NGC 4147, based upon measurements derived from 524 ground-based CCD images mostly either donated by colleagues or retrieved from public archives. We have…

Astrophysics · Physics 2009-11-11 P. B. Stetson , M. Catelan , H. A. Smith

Diffuse interstellar bands (DIBs) hold a lot of information about the state and the structure of the ISM. Structure can most directly be observed by extensive spectroscopic surveys, including surveys of stars where DIBs are especially…

Astrophysics of Galaxies · Physics 2017-05-10 Janez Kos