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相关论文: Standard Galactic Field RR Lyrae. I. Optical to Mi…

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We present multi-epoch infrared photometry in the $K_s$-band for 74 bright RR Lyrae variable stars tied directly to the 2MASS photometric system. We systematize additional $K$-band photometry from the literature to the 2MASS system and…

星系天体物理 · 物理学 2019-08-21 Andrew C. Layden , Glenn P. Tiede , Brian Chaboyer , Curtis Bunner , Michael T. Smitka

We present preliminary Sloan u',g'-band light curves for a sample of known RR Lyrae variables in the Galactic globular cluster Omega Cen. Results are based on the partial reduction of multi-band time series photometric data collected during…

We present a comprehensive photometric study of RR Lyrae stars in the M3 globular cluster, utilising a vast dataset of 3140 optical ($UBVRI$) CCD images spanning 35 years from astronomical data archives. We have successfully identified…

太阳与恒星天体物理 · 物理学 2024-05-28 Nitesh Kumar , Anupam Bhardwaj , Harinder P. Singh , Marina Rejkuba , Marcella Marconi , Philippe Prugniel

We present the most extensive set to date of high-quality RR Lyrae light curve templates in the griz bands, based on time-series observations of the Dark Energy Camera Plane Survey (DECaPS) East field, located in the Galactic bulge at…

We present photometry of 30 Galactic RR Lyrae variables taken with HST WFC3/IR for the Carnegie-Chicago Hubble Program. These measurements form the base of the distance ladder measurements that comprise a pure Population II base to a…

New B, V, I photometry was obtained for a sample of 152 variables (125 RR Lyrae's, 4 anomalous Cepheids, 11 classical Cepheids, 11 eclipsing binaries and a delta Scuti star) in two regions near the bar of the Large Magellanic Cloud (LMC).…

天体物理学 · 物理学 2007-05-23 M. Maio , G. Clementini , A. Bragaglia , E. Carretta , R. Gratton , L. Di Fabrizio

The TESS space telescope is collecting continuous, high-precision optical photometry of stars throughout the sky, including thousands of RR Lyrae stars. In this paper, we present results for an initial sample of 118 nearby RR Lyrae stars…

RR Lyrae stars may be the best practical tracers of Galactic halo (sub-)structure and kinematics. The PanSTARRS1 (PS1) $3\pi$ survey offers multi-band, multi-epoch, precise photometry across much of the sky, but a robust identification of…

We present a group of 3740 previously identified RR Lyrae variables well-observed with the Wide-field Infrared Survey Explorer (WISE). We explore how the shape of the generic RR Lyrae mid-infrared light curve evolves in period-space,…

太阳与恒星天体物理 · 物理学 2015-06-18 Tatyana Gavrilchenko , Christopher R. Klein , Joshua S. Bloom , Joseph W. Richards

This paper presents results from photometric and statistical-parallax analysis of a sample of 850 field RR Lyrae (RRL) variables. The photometric and spectroscopic data for sample RRLs are obtained from (1) our new spectroscopic…

星系天体物理 · 物理学 2021-02-10 T. D. Muhie , A. K. Dambis , L. N. Berdnikov , A. Y. Kniazev , Eva K. Grebel

The space photometric project "Lyra" is developed now in Russia.The project purpose is determination of the photometric information and coordinates of the natural and artificial space objects, from the brightest ones to 16^m in visual…

天体物理仪器与方法 · 物理学 2010-02-26 Alexey V. Mironov , Andrey I. Zakharov , Mikhail E. Prokhorov , Feodor N. Nikolaev , Maxim N. Tuchin

RR Lyrae stars are useful chemical tracers thanks to the empirical relationship between their heavy-element abundance and the shape of their light curves. However, the consistent and accurate calibration of this relation across multiple…

太阳与恒星天体物理 · 物理学 2022-05-31 István Dékány , Eva K. Grebel

We present the results of a massive variability search based on a photometric survey of a six square degree region along the Galactic plane at ($l = 305^\circ$, $b = -0.8^\circ$) and ($l = 330^\circ$, $b = -2.5^\circ$). This survey was…

RR Lyrae stars have long been popular standard candles, but significant advances in methodology and technology have been made in recent years to increase their precision as distance indicators. We present multi-wavelength (optical…

We present a Bayesian analysis of the distances to 15,040 Large Magellanic Cloud (LMC) RR Lyrae stars using $V$- and $I$-band light curves from the Optical Gravitational Lensing Experiment, in combination with new $z$-band observations from…

天体物理仪器与方法 · 物理学 2014-05-08 Christopher R. Klein , S. B. Cenko , Adam A. Miller , Dara J. Norman , Joshua S. Bloom

The LAMOST spectroscopic survey for Galactic structure and evolution has been in operation since October 2012, following a one-year pilot survey. The pilot survey produced a data release containing over 600,000 stellar spectra. By…

太阳与恒星天体物理 · 物理学 2013-06-21 F. Yang , L. Deng , C. Liu , J. L. Carlin , H. Jo Newberg , K. Carrell , X. Zhang , Z. Bai , F. Wang , H. Zhang , K. Wang , Y. Xin , Y. Xu , S. Gao , Y. Zhang , J. Li , Y Zhao

We have obtained repeated images of 6 fields towards the Galactic bulge in 5 passbands (u, g, r, i, z) with the DECam imager on the Blanco 4m telescope at CTIO. From over 1.6 billion individual photometric measurements in the field centered…

We determine the period-magnitude relations of RR Lyrae stars in 13 photometric bandpasses from 0.4 to 12 {\mu}m using timeseries observations of 134 stars. The Bayesian formalism, extended from our previous work to include the effects of…

太阳与恒星天体物理 · 物理学 2014-06-10 Christopher R. Klein , Joshua S. Bloom

We report the discovery of 73 double-mode RR Lyrae (RRd) stars in fields near the bar of the LMC. The stars are detected among the MACHO database of short-period variables that currently contains about 7900 RR Lyrae stars. Fundamental…

We present new near-infrared ($JHK_s$) time-series observations of RR Lyrae variables in the Messier 3 (NGC 5272) globular cluster using the WIRCam instrument at the 3.6-m Canada France Hawaii Telescope. Our observations cover a sky area of…

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