Kavli Affiliate: Michael McDonald | First 5 Authors: Francesco Ubertosi, Myriam Gitti, Fabrizio Brighenti, Gianfranco Brunetti, Michael McDonald | Summary: We present the first results of a deep $Chandra$ observation of the galaxy cluster RBS 797, whose previous X-ray studies revealed two pronounced X-ray cavities in the east-west (E-W) direction. Follow-up VLA radio observations of […]
Kavli Affiliate: Andrew Vanderburg | First 5 Authors: Alexander Venner, Logan A. Pearce, Andrew Vanderburg, , | Summary: The long-period giant planet HR 5183 b has one of the most extreme orbits among exoplanets known to date. In this work we use Hipparcos-Gaia astrometry to measure the orbital inclination of this planet for the first […]
Kavli Affiliate: Lina Necib | First 5 Authors: Daniel McKeown, James S. Bullock, Francisco J. Mercado, Zachary Hafen, Michael Boylan-Kolchin | Summary: We use FIRE-2 zoom cosmological simulations of Milky Way size galaxy halos to calculate astrophysical J-factors for dark matter annihilation and indirect detection studies. In addition to velocity-independent (s-wave) annihilation cross sections $sigma_v$, […]
Kavli Affiliate: Andrew Vanderburg | First 5 Authors: Chantanelle Nava, Mercedes López-Morales, Annelies Mortier, Li Zeng, Helen A. C. Giles | Summary: We present mass and radius measurements of K2-79b and K2-222b, two transiting exoplanets orbiting active G-type stars. Their respective 10.99d and 15.39d orbital periods fall near periods of signals induced by stellar magnetic […]
Kavli Affiliate: Roland K. Vanderspek | First 5 Authors: Sydney Vach, Samuel N. Quinn, Andrew Vanderburg, Stephen R. Kane, Karen A. Collins | Summary: As an all-sky survey, NASA’s $TESS$ mission is able to detect the brightest and rarest types of transiting planetary systems, including young planets that enable study of the evolutionary processes that […]
Kavli Affiliate: Mark Vogelsberger | First 5 Authors: Rahul Kannan, Aaron Smith, Enrico Garaldi, Xuejian Shen, Mark Vogelsberger | Summary: Line intensity mapping (LIM) is rapidly emerging as a powerful technique to study galaxy formation and cosmology in the high-redshift Universe. We present LIM estimates of select spectral lines originating from the interstellar medium (ISM) […]
Kavli Affiliate: Roland K. Vanderspek | First 5 Authors: Christina Hedges, Alex Hughes, Steven Giacalone, George Zhou, Trevor J. David | Summary: We report the discovery of two planetary systems around comoving stars; TOI-2076 (TIC 27491137) and TOI-1807 (TIC 180695581). TOI-2076 is a nearby (41.9 pc) multi-planetary system orbiting a young (204$pm$50 Myr), bright (K […]
Kavli Affiliate: Eric Miller | First 5 Authors: Ruijie Jiang, Julia Gouvea, Eric Miller, David Hammer, Shuchin Aeron | Summary: This paper shows that a popular approach to the supervised embedding of documents for classification, namely, contrastive Word Mover’s Embedding, can be significantly enhanced by adding interpretability. This interpretability is achieved by incorporating a clustering […]
Kavli Affiliate: Erin Kara | First 5 Authors: Adam Ingram, Guglielmo Mastroserio, Michiel van der Klis, Edward Nathan, Riley Connors | Summary: We show that X-ray reverberation mapping can be used to measure the distance to type 1 active galactic nuclei (AGNs). This is because X-ray photons originally emitted from the `corona’ close to the […]
Kavli Affiliate: Andrew Vanderburg | First 5 Authors: Andrew Vanderburg, Joseph E. Rodriguez, , , | Summary: We place the first constraints on binary planets and exomoons from Doppler monitoring of directly imaged exoplanets. We model radial velocity observations of HR 8799 b, c, and d from Ruffio et al. (2021) and determine upper limits […]