Search Publications
Missions
Journals
Publication Years
Cool, Luminous, and Highly Variable Stars in the Magellanic Clouds from ASAS-SN: Implications for Thorne-Żytkow Objects and Super-asymptotic Giant Branch Stars
Drout, Maria R.; O'Grady, Anna J. G.; Kochanek, C. S. +9 more
Stars with unusual properties can provide a wealth of information about rare stages of stellar evolution and exotic physics. However, determining the true nature of peculiar stars is often difficult. In this work, we conduct a systematic search for cool and luminous stars in the Magellanic Clouds with extreme variability, motivated by the properti…
Data Lab-A community science platform
Nikutta, R.; Fitzpatrick, M.; Scott, A. +1 more
Data Lab is an open-access science platform developed and operated by the Community and Science Data Center (CSDC) at NSF's National Optical-Infrared Astronomy Research Laboratory (NOIRLab). It serves public photometric survey datasets, provides interactive and programmatic data access, and SQL/ADQL query capabilities via TAP. Users also receive g…
Searching for central stars of planetary nebulae in Gaia DR2
Walton, N. A.; Chornay, N.
Context. Accurate distance measurements are fundamental to the study of planetary nebulae (PNe) but they have long been elusive. The most accurate and model-independent distance measurements for galactic PNe come from the trigonometric parallaxes of their central stars, which were only available for a few tens of objects prior to the Gaia mission.…
Dynamics of Late-stage Reconnection in the 2017 September 10 Solar Flare
Judge, Philip G.; Long, David M.; Matthews, Sarah A. +2 more
In this multi-instrument paper, we search for evidence of sustained magnetic reconnection far beyond the impulsive phase of the X8.2-class solar flare on 2017 September 10. Using Hinode/EIS, CoMP, SDO/AIA, K-Cor, Hinode/XRT, RHESSI, and IRIS, we study the late-stage evolution of the flare dynamics and topology, comparing signatures of reconnection…
The accretion history of high-mass stars: an ArTéMiS pilot study of infrared dark clouds
Roussel, H.; Arzoumanian, D.; Könyves, V. +14 more
The mass growth of protostars is a central element to the determination of fundamental stellar population properties such as the initial mass function. Constraining the accretion history of individual protostars is therefore an important aspect of star formation research. The goal of the study presented here is to determine whether high-mass (prot…
Tidal tails of open star clusters as probes to early gas expulsion. II. Predictions for Gaia
Kroupa, Pavel; Dinnbier, František
Aims: We study the formation and evolution of the tidal tail released from a young star Pleiades-like cluster, due to expulsion of primordial gas in a realistic gravitational field of the Galaxy. The tidal tails (as well as clusters) are integrated from their embedded phase for 300 Myr. We vary star formation efficiencies (SFEs) from 33% to 1…
Impact of Planetary Mass Uncertainties on Exoplanet Atmospheric Retrievals
Waldmann, I. P.; Tinetti, G.; Changeat, Q. +1 more
In current models used to interpret exoplanet atmospheric observations, the planetary mass is treated as a prior and is measured/estimated independently with external methods, such as radial velocity or transit timing variation techniques. This approach is necessary as available spectroscopic data do not have sufficient wavelength coverage and/or …
Extending the Breakthrough Listen nearby star survey to other stellar objects in the field
Garrett, M. A.; Wlodarczyk-Sroka, B. S.; Siemion, A. P. V.
We extend the source sample recently observed by the Breakthrough Listen (BL) Initiative by including additional stars (with parallaxes measured by Gaia) that also reside within the full width at half-maximum of the Green Bank 100-m Telescope and Parkes radio telescope target fields. These stars have estimated distances as listed in the extensions…
Completing the Census of AGN in GOODS-S/HUDF: New Ultradeep Radio Imaging and Predictions for JWST
Rieke, George H.; Alberts, Stacey; Nyland, Kristina +2 more
A global understanding of active galactic nuclei (AGN) and their host galaxies hinges on completing a census of AGN activity without selection biases down to the low-luminosity regime. Toward that goal, we identify AGN within faint radio populations at cosmic noon selected from new ultradeep, high-resolution imaging from the Karl G. Jansky Very La…
ZTF J1901+5309: a 40.6-min orbital period eclipsing double white dwarf system
Kulkarni, S. R.; Duev, Dmitry A.; Riddle, Reed +17 more
The Zwicky Transient Facility has begun to discover binary systems with orbital periods that are less than 1 h. Combined with dedicated follow-up systems, which allow for high-cadence photometry of these sources, systematic confirmation and characterization of these sources are now possible. Here, we report the discovery of ZTF J190125.42+530929.5…