activity
20002023
most citedSEGUE: A Spectroscopic Survey of 240,000 stars with g=14-20

1.2k citations · 4.9k across the 35 of their papers we have counts for

collaborators

35 papers

astro-ph.SR2023★ 3 cited

Modulation of the Blazhko Cycle in LS Her

Ronald Wilhelm, Kenneth Carrell, Hannah H. Means +8

We present analysis of the RR Lyrae star, LS Her and confirm the previously reported modulation to its Blazhko cycles. We performed Fourier analysis on two sectors (Sector 24 & 25)…

astro-ph.GA2022★ 7 cited

SDSS-IV MaStar: Stellar Parameter Determination with Continuum-Supplemented Full-Spectrum Fitting

Daniel Lazarz, Renbin Yan, Ronald Wilhelm +13

We present a stellar parameter catalog built to accompany the MaStar Stellar Library, which is a comprehensive collection of empirical, medium-resolution stellar spectra. We constr…

astro-ph.SR2021★ 5 cited

The Changing Lightcurve of the Double-Mode RR Lyrae Variable Star V338 Boo

Kenneth Carrell, Ronald Wilhelm, Faith Olsen +3

We present an analysis of the lightcurve extracted from Transiting Exoplanet Survey Satellite Full Frame Images of the double-mode RR Lyrae V338 Boo. We find that the fundamental m…

astro-ph.GA2020★ 65 cited

Dynamically Tagged Groups of Very Metal-poor Halo Stars from the HK and Hamburg/ESO Surveys

Guilherme Limberg, Silvia Rossi, Timothy C. Beers +13

We analyze the dynamical properties of 1500 very metal-poor (VMP; [Fe/H] ) halo stars, based primarily on medium-resolution spectroscopic data from the HK and…

astro-ph.IM2018★ 128 cited

SDSS-IV MaStar -- A Large and Comprehensive Empirical Stellar Spectral Library: First Release

Renbin Yan, Yanping Chen, Daniel Lazarz +45

We present the first release of the MaNGA Stellar Library (MaStar), which is a large, well-calibrated, high-quality empirical library covering the wavelength range of 3,622-10,354A…

astro-ph.SR2018★ 6 cited

Young Blue Straggler Stars in the Galactic Field

Gemunu Ekanayake, Ronald Wilhelm

In this study we present an analysis of a sample of field blue straggler (BS) stars that show high ultra violet emission in their spectral energy distributions (SED): indication of…