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Related papers: The K2 Galactic Archaeology Program: Overview, tar…

200 papers

$K2$'s Campaign 9 ($K2$C9) will conduct a $\sim$3.7 deg$^{2}$ survey toward the Galactic bulge from 7/April through 1/July of 2016 that will leverage the spatial separation between $K2$ and the Earth to facilitate measurement of the…

Earth and Planetary Astrophysics · Physics 2016-11-23 Calen B. Henderson , Radosław Poleski , Matthew Penny , Rachel A. Street , David P. Bennett , David W. Hogg , B. Scott Gaudi , W. Zhu , T. Barclay , G. Barentsen , S. B. Howell , F. Mullally , A. Udalski , M. K. Szymański , J. Skowron , P. Mróz , S. Kozłowski , Ł. Wyrzykowski , P. Pietrukowicz , I. Soszyński , K. Ulaczyk , M. Pawlak , T. Sumi , F. Abe , Y. Asakura , R. K. Barry , A. Bhattacharya , I. A. Bond , M. Donachie , M. Freeman , A. Fukui , Y. Hirao , Y. Itow , N. Koshimoto , M. C. A. Li , C. H. Ling , K. Masuda , Y. Matsubara , Y. Muraki , M. Nagakane , K. Ohnishi , H. Oyokawa , N. Rattenbury , To. Saito , A. Sharan , D. J. Sullivan , P. J. Tristram , A. Yonehara , E. Bachelet , D. M. Bramich , A. Cassan , M. Dominik , R. Figuera Jaimes , K. Horne , M. Hundertmark , S. Mao , C. Ranc , R. Schmidt , C. Snodgrass , I. A. Steele , Y. Tsapras , J. Wambsganss , V. Bozza , M. J. Burgdorf , U. G. Jørgensen , S. Calchi Novati , S. Ciceri , G. D'Ago , D. F. Evans , F. V. Hessman , T. C. Hinse , T. -O. Husser , L. Mancini , A. Popovas , M. Rabus , S. Rahvar , G. Scarpetta , J. Skottfelt , J. Southworth , E. Unda-Sanzana , S. T. Bryson , D. A. Caldwell , M. R. Haas , K. Larson , K. McCalmont , M. Packard , C. Peterson , D. Putnam , L. Reedy , S. Ross , J. E. Van Cleve , R. Akeson , V. Batista , J. -P. Beaulieu , C. A. Beichman , G. Bryden , D. Ciardi , A. Cole , C. Coutures , D. Foreman-Mackey , P. Fouqué , M. Friedmann , C. Gelino , S. Kaspi , E. Kerins , H. Korhonen , D. Lang , C. -H. Lee , C. H. Lineweaver , D. Maoz , J. -B. Marquette , F. Mogavero , J. C. Morales , D. Nataf , R. W. Pogge , A. Santerne , Y. Shvartzvald , D. Suzuki , M. Tamura , P. Tisserand , D. Wang

Gravitational clustering broadens the count-in-cells distribution of galaxies for surveys along uncorrelated (well-separated) lines of sight beyond Poisson noise. A number of methods have proposed to measure this excess "cosmic" variance to…

Astrophysics of Galaxies · Physics 2018-11-28 Alex Cameron , Michele Trenti , Rachael Livermore , Cameron van der Velden

We describe a general target selection algorithm that is applicable to any survey in which the number of available candidates is much larger than the number of objects to be observed. This routine aims to achieve a balance between a…

The Galaxy And Mass Assembly Survey (GAMA) has now been operating for almost 5 years gathering spectroscopic redshifts for five regions of sky spanning 300 sq degrees in total to a depth of r<19.8 mag. The survey has amassed over 225,000…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-12 Simon P. Driver

We present a generic algorithm to search for dwarf galaxies in photometric catalogs and apply it to the Pan-Andromeda Archaeological Survey (PAndAS). The algorithm is developed in a Bayesian framework and, contrary to most…

Accurate surface rotation measurements are crucial to estimate stellar ages and improve our understanding of stellar rotational evolution. Comparisons of datasets obtained from different space missions on common targets represent in this…

Solar and Stellar Astrophysics · Physics 2025-09-24 Sylvain N. Breton , Elisa Distefano , Alessandro C. Lanzafame , Dinil B. Palakkatharappil

The $\textit{Kepler}$ satellite potentially provides the highest precision photometry of active galactic nuclei (AGN) available to investigate short-timescale optical variability. We targeted quasars from the Sloan Digital Sky Survey that…

Astrophysics of Galaxies · Physics 2021-11-17 Jackeline Moreno , Rachel Buttry , John O'Brien , Michael S. Vogeley , Gordon T. Richards , Krista Lynne Smith

Besides its major objective tuned to the detection of the stellar galactic population the Gaia mission experiment will also observe a large number of galaxies. In this work we intend to evaluate the number and the characteristics of the…

We describe the release of a new High Level Science Product (HLSP) available at the MAST archive. The HLSP, called K2Superstamp, consists of a series of FITS images for four open star clusters observed by the K2 Mission using so-called…

Instrumentation and Methods for Astrophysics · Physics 2018-02-20 Ann Marie Cody , Geert Barentsen , Christina Hedges , Michael Gully-Santiago , José Vinícius de Miranda Cardoso

Given their location on the Hertzsprung-Russell (HR) diagram, thoroughly characterized subgiant stars can place stringent constraints on a wide range of astrophysical problems. Accordingly, they are prime asteroseismic targets for the…

Radio campaigns using maser stellar beacons have provided crucial information to characterize Galactic stellar populations. Currently, the Bulge Asymmetries and Dynamical Evolution (BAaDE) project is surveying infrared (IR) color-selected…

The LAMOST-\textit{K}2 (L\textit{K}2) project, initiated in 2015, aims to collect low-resolution spectra of targets in the \textit{K}2 campaigns, similar to LAMOST-\textit{Kepler} project. By the end of 2018, a total of 126 L\textit{K}2…

The GAMA survey has now completed its spectroscopic campaign of over 250,000 galaxies ($r<19.8$mag), and will shortly complete the assimilation of the complementary panchromatic imaging data from GALEX, VST, VISTA, WISE, and Herschel. In…

Astrophysics of Galaxies · Physics 2015-07-03 Simon P. Driver

We present a homogeneous spectroscopic analysis of confirmed K2 mission exoplanet-hosting stars, comprising 301 targets with high-resolution optical spectra from HIRES and TRES taken from ExoFOP. We derived effective temperatures, surface…

Solar and Stellar Astrophysics · Physics 2025-10-22 V. Loaiza-Tacuri , Diogo Souto , F. Quispe-Huaynasi , Katia Cunha , S. Daflon , Ellen Costa-Almeida , V. V. Smith , Luan Ghezzi

Context. Large spectroscopic surveys open the way to explore our Galaxy. In order to use the data from these surveys to understand the Galactic stellar population, we need to be sure that stars contained in a survey are a representative…

Astrophysics of Galaxies · Physics 2018-12-26 Alexey Mints , Saskia Hekker

Asteroseismology can make a substantial contribution to our understanding of the formation history and evolution of our Galaxy by providing precisely determined stellar properties for thousands of stars in different regions of the Milky…

Solar and Stellar Astrophysics · Physics 2016-10-19 V. Silva Aguirre , A. M. Serenelli

The NASA Kepler mission has observed more than 190,000 stars in the constellations of Cygnus and Lyra. Around 4 years of almost continuous ultra high-precision photometry have been obtained reaching a duty cycle higher than 90% for many of…

Precise stellar ages (uncertainties $\lesssim 1$ Gyr, or $\sim 20\%$ at solar age) are required to discern evolutionary trends in atmospheric biosignatures of terrestrial habitable zone exoplanets surveyed by the Habitable Worlds…

Solar and Stellar Astrophysics · Physics 2026-05-14 Austin T. Ware , Katelyn Ruppert , Patrick A. Young

We present Classification of Cluster GAlaxy MEmbers (C$^2$-GaMe), a classification algorithm based on a suite of machine learning models that differentiates galaxies into orbiting, infalling, and background (interloper) populations, using…

Cosmology and Nongalactic Astrophysics · Physics 2023-09-25 Daniel Farid , Han Aung , Daisuke Nagai , Arya Farahi , Eduardo Rozo