163 citations · 287 across the 10 of their papers we have counts for
11 papers
Anchoring the Chromospheric ActivityRotation Relation: A Study of the Pleiades and Group X
A. Núñez, M. A. Agüeros, J. L. Curtis +1
We present a study of the rotation and the chromospheric H activity of low-mass stars in the 120 Myr-old Pleiades and the 400 Myr-old Group X open clusters. We…
The Factory and the Beehive. V. Chromospheric and Coronal Activity and Its Dependence on Rotation in Praesepe and the Hyades
Alejandro Núñez, M. A. Agüeros, J. L. Curtis +6
Low-mass (< 1.2 Solar mass) main-sequence stars lose angular momentum over time, leading to a decrease in their magnetic activity. The details of this rotation-activity relation re…
Hyades Member K2-136c: The Smallest Planet in an Open Cluster with a Precisely Measured Mass
Andrew W. Mayo, Courtney D. Dressing, Andrew Vanderburg +39
K2-136 is a late-K dwarf ( M) in the Hyades open cluster with three known, transiting planets and an age of Myr. Analyzing K2 photometry, we found…
Using stellar rotation to identify tidally stripped members of the Praesepe open cluster
Jessica McDivitt, Stephanie T. Douglas, Jason Lee Curtis +2
As an open cluster orbits the Milky Way, gravitational fields distort it, stripping stars from the core and forming tidal tails. Recent work has identified tidal tails of the Praes…
The Factory and the Beehive. IV. A Comprehensive Study of the Rotation X-ray Activity Relation in Praesepe and the Hyades
Alejandro Núñez, Marcel A. Agüeros, Kevin R. Covey +7
X-ray observations of low-mass stars in open clusters are critical to understanding the dependence of magnetic activity on stellar properties and their evolution. Praesepe and the…
Activity and Rotation of Nearby Field M Dwarfs in the TESS Southern Continuous Viewing Zone
Francys Anthony, Alejandro Núñez, Marcel A. Agüeros +8
The evolution of magnetism in late-type dwarfs remains murky, as we can only weakly predict levels of activity for M dwarfs of a given mass and age. We report results from our spec…
A Lyman-alpha transit left undetected: the environment and atmospheric behavior of K2-25b
Keighley E. Rockcliffe, Elisabeth R. Newton, Allison Youngblood +6
K2-25b is a Neptune-sized exoplanet (3.45 Earth radii) that orbits its M4.5 host with a period of 3.48 days. Due to its membership in the Hyades Cluster, the system has a known age…
Three K2 Campaigns Yield Rotation Periods for 1013 Stars in Praesepe
Rayna Rampalli, Marcel A. Agüeros, Jason L. Curtis +8
We use three campaigns of K2 observations to complete the census of rotation in low-mass members of the benchmark, 670-Myr-old open cluster Praesepe. We measure new rotati…
Mapping optically variable quasars towards the galactic plane
J. G. Fernandez-Trincado, T. Verdugo, C. Reylé +13
We present preliminary results of the CIDA Equatorial Variability Survey (CEVS), looking for quasar (hereafter QSO) candidates near the Galactic plane. The CEVS contains photometri…
2MASSJ035523.51+113337.4: A Young, Dusty, Nearby, Isolated Brown Dwarf Resembling A Giant Exoplanet
Jacqueline K. Faherty, Emily L. Rice, Kelle L. Cruz +2
We present parallax and proper motion measurements, near-infrared spectra, and WISE photometry for the low surface gravity L5gamma dwarf 2MASSJ035523.37+113343.7 (2M0355). We use t…
Discovery of Two Very Wide Binaries with Ultracool Companions and a New Brown Dwarf at the L/T Transition
Koraljka Muzic, Jacqueline Radigan, Ray Jayawardhana +11
We present the discovery and spectroscopic follow-up of a nearby late-type L dwarf (2M0614+3950), and two extremely wide very-low-mass binary systems (2M0525-7425AB and 2M1348-1344…