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The Discovery and Follow-up of Four Transiting Short-period Sub-Neptunes Orbiting M Dwarfs
DOI: 10.3847/1538-3881/ad4115 Bibcode: 2024AJ....167..289H

Lester, Kathryn V.; Ikuta, Kai; Tamura, Motohide +100 more

Sub-Neptunes with radii of 2–3 R are intermediate in size between rocky planets and Neptune-sized planets. The orbital properties and bulk compositions of transiting sub-Neptunes provide clues to the formation and evolution of close-in small planets. In this paper, we present the discovery and follow-up of four sub-Neptunes orbiting M…

2024 The Astronomical Journal
Gaia 0
Detection of High-frequency Pulsation in WR 135: Investigation of Stellar Wind Dynamics
DOI: 10.3847/1538-3881/ad77d0 Bibcode: 2024AJ....168..199K

Mathew, Blesson; Baug, Tapas; Das, Ramkrishna +2 more

We report the detection of high-frequency pulsations in WR 135 from short-cadence (10 minute) optical photometric and spectroscopic time series surveys. The harmonics up to the sixth order are detected from the integrated photometric flux variations, while the comparatively weaker eighth harmonic is detected from the strengths of the emission line…

2024 The Astronomical Journal
Gaia 0
Clusters, Clumps, Dust, and Gas (CCDG) in NGC 1614: Benchmarking Cluster Demographics in Extreme Systems
DOI: 10.3847/1538-3881/ad7de7 Bibcode: 2024AJ....168..259C

Whitmore, Bradley C.; Chandar, Rupali; Goudfrooij, Paul +3 more

Observations of young star clusters in a variety of galaxies have been used to constrain basic properties related to star formation, such as the fraction of stars found in clusters (Γ) and the shape of the cluster mass function (CMF). However, the results can depend heavily on the reliability of the cluster age-dating process and other assumptions…

2024 The Astronomical Journal
Gaia eHST 0