Kavli Affiliate: George Ricker | First 5 Authors: Faith Hawthorn, Daniel Bayliss, Thomas G. Wilson, Andrea Bonfanti, Vardan Adibekyan | Summary: We present the discovery of two exoplanets transiting TOI-836 (TIC 440887364) using data from TESS Sector 11 and Sector 38. TOI-836 is a bright ($T = 8.5$ mag), high proper motion ($sim,200$ mas yr$^{-1}$), […]
Kavli Affiliate: Mark Vogelsberger | First 5 Authors: Ana Trcka, Maarten Baes, Peter Camps, Anand Utsav Kapoor, Dylan Nelson | Summary: We apply the radiative transfer (RT) code SKIRT on a sample of ~14000 low-redshift (z<= 0.1) galaxies extracted from the TNG50 simulation to enable an apples-to-apples comparison with observations. The RT procedure is calibrated […]
Kavli Affiliate: Sara Seager | First 5 Authors: Steven Giacalone, Courtney D. Dressing, Antonio García Muñoz, Matthew J. Hooton, Keivan G. Stassun | Summary: We report the discovery in TESS data and validation of HD 56414 b (a.k.a. TOI-1228 b), a Neptune-size ($R_{rm p} = 3.71 pm 0.20, R_oplus$) planet with a 29-day orbital period […]
Kavli Affiliate: George Ricker | First 5 Authors: Charles Cadieux, René Doyon, Mykhaylo Plotnykov, Guillaume Hébrard, Farbod Jahandar | Summary: Exploring the properties of exoplanets near or inside the radius valley provides insights on the transition from the rocky super-Earths to the larger, hydrogen-rich atmosphere mini-Neptunes. Here, we report the discovery of TOI-1452 b, a […]
Kavli Affiliate: Roland Vanderspek | First 5 Authors: Carina M. Persson, Iskra Y. Georgieva, Davide Gandolfi, Lorena Acuña, Artem Aguichine | Summary: Highly irradiated planets in the hot Neptune desert are usually either small (R < 2 Rearth) and rocky or they are gas giants with radii of >1 Rjup. Here, we report on the […]
Kavli Affiliate: Sara Seager | First 5 Authors: Rachana Agrawal, Weston P. Buchanan, Archit Arora, Athul P. Girija, Maxim de Jong | Summary: Venus is known for its extreme surface temperature and its sulfuric acid clouds. But the cloud layers on Venus have similar temperature and pressure conditions to those on the surface of Earth […]
Kavli Affiliate: Sara Seager | First 5 Authors: Weston P. Buchanan, Maxim de Jong, Rachana Agrawal, Janusz J. Petkowski, Archit Arora | Summary: Mounting evidence of chemical disequilibria in the Venusian atmosphere has heightened interest in the search for life within the planet’s cloud decks. Balloon systems are currently considered to be the superior class […]
Kavli Affiliate: Sara Seager | First 5 Authors: Sara Seager, Janusz J. Petkowski, Christopher E. Carr, David H. Grinspoon, Bethany L. Ehlmann | Summary: Finding evidence of extraterrestrial life would be one of the most profound scientific discoveries ever made, advancing humanity into a new epoch of cosmic awareness. The Venus Life Finder (VLF) missions […]
Kavli Affiliate: Deepto Chakrabarty | First 5 Authors: Peter Bult, Diego Altamirano, Zaven Arzoumanian, Deepto Chakrabarty, Jérôme Chenevez | Summary: We present the discovery of 528.6 Hz pulsations in the new X-ray transient MAXI J1816-195. Using NICER, we observed the first recorded transient outburst from the neutron star low-mass X-ray binary MAXI J1816-195 over a […]
Kavli Affiliate: Erin Kara | First 5 Authors: Ruancun Li, Luis C. Ho, Claudio Ricci, Benny Trakhtenbrot, Iair Arcavi | Summary: Changing-look active galactic nuclei (AGNs) present an important laboratory to understand the origin and physical properties of the broad-line region (BLR). We investigate follow-up optical spectroscopy spanning $sim 500$ days after the outburst of […]