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We apply the spectroscopy-based stellar-color regression (SCR) method to perform an accurate photometric re-calibration of the second data release from the SkyMapper Southern Survey (SMSS DR2). From comparison with a sample of over 200,000…

Photometry from the Kepler mission is optimized to detect small, short duration signals like planet transits at the expense of long-term trends. This long-term variability can be recovered in photometry from the Full Frame Images (FFIs), a…

Solar and Stellar Astrophysics · Physics 2017-12-27 Benjamin T. Montet , Guadalupe Tovar , Daniel Foreman-Mackey

The spectrophotometric flux calibration of recent spectroscopic surveys has reached a limiting systematic precision of approximately 1-3 percent, and is often biased near the wavelengths associated with H I Balmer absorption. As we prepare…

Solar and Stellar Astrophysics · Physics 2026-01-12 Ryan Cooke , Nao Suzuki , J. Xavier Prochaska

We describe the construction of a highly reliable sample of approximately 7,000 optically faint periodic variable stars with light curves obtained by the asteroid survey LINEAR across 10,000 sq.deg of northern sky. Majority of these…

Principal Component Analysis (PCA) is being extensively used in Astronomy but not yet exhaustively exploited for variability search. The aim of this work is to investigate the effectiveness of using the PCA as a method to search for…

Instrumentation and Methods for Astrophysics · Physics 2018-04-04 M. I. Moretti , D. Hatzidimitriou , A. Karampelas , K. V. Sokolovsky , A. Z. Bonanos , P. Gavras , M. Yang

In the third paper of this series we continue the exploitation of Kepler/K2 data in dense stellar fields using our PSF-based method. This work is focused on a ~720-arcmin^2 region centred on the Solar-metallicity and Solar-age open cluster…

Solar and Stellar Astrophysics · Physics 2016-09-07 D. Nardiello , M. Libralato , L. R. Bedin , G. Piotto , L. Borsato , V. Granata , L. Malavolta , V. Nascimbeni

This paper presents a careful and detailed light curve analysis of bright detached eclipsing binaries (DEB) in the Small Magellanic Cloud, discovered by OGLE collaboration, on the basis of recently available difference image analysis (DIA)…

Astrophysics · Physics 2009-11-07 Dariusz Graczyk

This paper presents the characterization of the optical range of the ALHAMBRA photometric system, a 20 contiguous, equal-width, medium-band CCD system with wavelength coverage from 3500A to 9700A. The photometric description of the system…

Although primarily aimed at the galactic archeology and evolution, automated all-sky spectroscopic surveys (RAVE, SDSS) are also a valuable source for the binary star research community. Identification of double-lined spectra is easy and it…

Solar and Stellar Astrophysics · Physics 2009-10-08 G. Matijevic , T. Zwitter , the RAVE Collaboration

Context. We use the Southern Photometric Local Universe Survey (S-PLUS) Fourth Data Release (DR4) to identify and classify H$\alpha$-excess point sources in the Southern Sky, combining photometric data from 12 S-PLUS filters with machine…

Photometric redshifts are a key component of many science objectives in the Hyper Suprime-Cam Subaru Strategic Program (HSC-SSP). In this paper, we describe and compare the codes used to compute photometric redshifts for HSC-SSP, how we…

Ideal spatial demultiplexing (SPADE) is proven to be a quantum-optimal tool for exoplanet detection, i.e., asymmetric source discrimination. However, recent investigations into the related problems of separation estimation and symmetric…

Instrumentation and Methods for Astrophysics · Physics 2025-10-20 Tomasz Linowski , Konrad Schlichtholz , Giacomo Sorelli

We performed an intensive photometric monitoring of the PMS stars falling in a field of about 10x10 arc-minutes in the vicinity of the Orion Nebula Cluster (ONC). Photometric data were collected between November 2006 and January 2007 with…

Solar and Stellar Astrophysics · Physics 2009-11-05 A. Frasca , E. Covino , L. Spezzi , J. M. Alcala' , E. Marilli , G. Furesz , D. Gandolfi

Time-series photometry of the CoRoT field SRc02 was obtained by the Berlin Exoplanet Search Telescope II (BEST II) in 2009. The main aim was the ground based follow-up of the CoRoT field in order to detect variable stars with better spatial…

Solar and Stellar Astrophysics · Physics 2016-04-27 P. Klagyivik , Sz. Csizmadia , T. Pasternacki , J. Cabrera , R. Chini , P. Eigmüller , A. Erikson , T. Fruth , P. Kabath , R. Lemke , M. Murphy , H. Rauer , R. Titz-Weider

DBSP_DRP is a python package that provides fully automated data reduction of data taken by the Double Spectrograph (DBSP) at the 200-inch Hale Telescope at Palomar Observatory (Oke & Gunn, 1982). The underlying data reduction functionality…

Instrumentation and Methods for Astrophysics · Physics 2022-11-29 Milan Sharma Mandigo-Stoba , Christoffer Fremling , Mansi M. Kasliwal

We present a multi-wavelength catalog in the Subaru-XMM Deep Field (SXDF) as part of the Spitzer Large Area Survey with Hyper-Suprime-Cam (SPLASH). We include the newly acquired optical data from the Hyper-Suprime Cam Subaru Strategic…

With the advent of surveys generating multi-epoch photometry and the discovery of large numbers of variable stars, the classification of these stars has to be automatic. We have developed such a classification procedure for about 1700 stars…

Astrophysics · Physics 2009-11-10 L. Eyer , C. Blake

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 initiated digitization of the Moscow collection of astronomical plates using flatbed scanners. Techniques of photographic photometry of the digital images were applied, enabling an effective search for new variable stars. Our search for…

Astrophysics · Physics 2008-10-08 D. M. Kolesnikova , L. A. Sat , K. V. Sokolovsky , S. V. Antipin , N. N. Samus