11 New Transiting Brown Dwarfs and Very Low Mass Stars from TESS

Kavli Affiliate: Avi Shporer | First 5 Authors: Noah Vowell, Joseph E. Rodriguez, David W. Latham, Samuel N. Quinn, Jack Schulte | Summary: We present the discovery of 11 new transiting brown dwarfs and low-mass M-dwarfs from NASA’s TESS mission: TOI-2844, TOI-3122, TOI-3577, TOI-3755, TOI-4462, TOI-4635, TOI-4737, TOI-4759, TOI-5240, TOI-5467, and TOI-5882. They consist of […]


Continue.. 11 New Transiting Brown Dwarfs and Very Low Mass Stars from TESS

Cyclical accretion regime change in the slow X-ray pulsar 4U 0114+65 observed with Chandra

Kavli Affiliate: Norbert Schulz | First 5 Authors: Graciela Sanjurjo-Ferrín, Jose Miguel Torrejón, Konstantin Postnov, Michael Nowak, Jose Joaquín Rodes-Roca | Summary: 4U 0114+65 is a high-mass X-ray binary system formed by the luminous supergiant B1Ia, known as V{*} V662 Cas, and one of the slowest rotating neutron stars (NS) with a spin period of […]


Continue.. Cyclical accretion regime change in the slow X-ray pulsar 4U 0114+65 observed with Chandra

Cold Gas and Star Formation in the Phoenix Cluster with JWST

Kavli Affiliate: Michael McDonald | First 5 Authors: Michael Reefe, Michael McDonald, Marios Chatzikos, Jerome Seebeck, Richard Mushotzky | Summary: We present integral field unit observations of the Phoenix Cluster with the JWST Mid-infrared Instrument’s Medium Resolution Spectrometer (MIRI/MRS). We focus this study on the molecular gas, dust, and star formation in the brightest cluster […]


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Long-lived Habitable Zones around White Dwarfs undergoing Neon-22 Distillation

Kavli Affiliate: Andrew Vanderburg | First 5 Authors: Andrew Vanderburg, Antoine Bédard, Juliette C. Becker, Simon Blouin, | Summary: White dwarf stars have attracted considerable attention in the past 15 years as hosts for potentially habitable planets, but their low luminosity and continuous cooling are major challenges for habitability. Recently, astronomers have found that about […]


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LensNet: Enhancing Real-time Microlensing Event Discovery with Recurrent Neural Networks in the Korea Microlensing Telescope Network

Kavli Affiliate: Andrew Vanderburg | First 5 Authors: Javier Viaña, Kyu-Ha Hwang, Zoë de Beurs, Jennifer C. Yee, Andrew Vanderburg | Summary: Traditional microlensing event vetting methods require highly trained human experts, and the process is both complex and time-consuming. This reliance on manual inspection often leads to inefficiencies and constrains the ability to scale […]


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A Disintegrating Rocky Planet with Prominent Comet-like Tails Around a Bright Star

Kavli Affiliate: Avi Shporer | First 5 Authors: Marc Hon, Saul Rappaport, Avi Shporer, Andrew Vanderburg, Karen A. Collins | Summary: We report the discovery of BD+05$,$4868$,$Ab, a transiting exoplanet orbiting a bright ($V=10.16$) K-dwarf (TIC 466376085) with a period of 1.27 days. Observations from NASA’s Transiting Exoplanet Survey Satellite (TESS) reveal variable transit depths […]


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Confirmation of four hot Jupiters detected by TESS using follow-up spectroscopy from MaHPS at Wendelstein together with NEID and TRES

Kavli Affiliate: Sara Seager | First 5 Authors: Juliana Ehrhardt, Luis Thomas, Hanna Kellermann, Christine Freitag, Frank Grupp | Summary: We report the confirmation and characterization of four hot Jupiter-type exoplanets initially detected by TESS: TOI-1295 b, TOI-2580 b, TOI-6016 b, and TOI-6130 b. Using observations with the high-resolution echelle spectrograph MaHPS on the 2.1m […]


Continue.. Confirmation of four hot Jupiters detected by TESS using follow-up spectroscopy from MaHPS at Wendelstein together with NEID and TRES

Effects of galactic environment on size and dark matter content in low-mass galaxies

Kavli Affiliate: Lina Necib | First 5 Authors: Francisco J. Mercado, Jorge Moreno, Robert Feldmann, Marckie Zeender, Jose A. Benavides Blanco | Summary: We utilize the cosmological volume simulation, FIREbox, to investigate how a galaxy’s environment influences its size and dark matter content. Our study focuses on approximately 1,200 galaxies (886 central and 332 satellite […]


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Galaxy cluster characterization with machine learning techniques

Kavli Affiliate: Michael McDonald | First 5 Authors: Maria Sadikov, Julie Hlavacek-Larrondo, Laurence Perreault Levasseur, Carter Lee Rhea, Michael McDonald | Summary: We present an analysis of the X-ray properties of the galaxy cluster population in the z=0 snapshot of the IllustrisTNG simulations, utilizing machine learning techniques to perform clustering and regression tasks. We examine […]


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HST Observations within the Sphere of Influence of the Powerful Supermassive Black Hole in PKS0745-191

Kavli Affiliate: Michael McDonald | First 5 Authors: Julie Hlavacek-Larrondo, Hyunseop Choi, Minghao Guo, Annabelle Richard-Laferrière, Carter Rhea | Summary: We present Space Telescope Imaging Spectrograph observations from the Hubble Space Telescope of the supermassive black hole (SMBH) at the center of PKS0745-191, a brightest cluster galaxy (BCG) undergoing powerful radio-mode AGN feedback ($P_{rm cav}sim5times10^{45}$ […]


Continue.. HST Observations within the Sphere of Influence of the Powerful Supermassive Black Hole in PKS0745-191