Probing the Galactic Halo with RR Lyrae Stars — V. Chemistry, Kinematics, and Dynamically Tagged Groups

Posted by dbos Peking

Kavli Affiliate: Huawei Zhang | First 5 Authors: Jonathan Cabrera Garcia, Timothy C. Beers, Yang Huang, Xin-Yi Li, Gaochao Liu | Summary: We employ a sample of 135,873 RR Lyrae stars (RRLs) with precise photometric-metallicity and distance estimates from the newly calibrated $P$–$phi_{31}$–$R_{21}$–[Fe/H] and $Gaia$ $G$-band $P$–$R_{21}$–[Fe/H] absolute magnitude-metallicity relations of Li et al., combined […]


Continue.. Probing the Galactic Halo with RR Lyrae Stars — V. Chemistry, Kinematics, and Dynamically Tagged Groups

The UV Continuum Slopes of Early Star-Forming Galaxies in JADES

Posted by klaurent Cambridge

Kavli Affiliate: Roberto Maiolino | First 5 Authors: Michael W. Topping, Daniel P. Stark, Ryan Endsley, Lily Whitler, Kevin Hainline | Summary: The power-law slope of the rest-UV continuum ($f_{lambda}proptolambda^{beta}$) is a key metric of early star forming galaxies, providing one of our only windows into the stellar populations and physical conditions of $z>10$ galaxies. […]


Continue.. The UV Continuum Slopes of Early Star-Forming Galaxies in JADES

TOI 4201 b and TOI 5344 b: Discovery of Two Transiting Giant Planets Around M Dwarf Stars and Revised Parameters for Three Others

Posted by klaurent MIT

Kavli Affiliate: Roland Vanderspek | First 5 Authors: J. D. Hartman, G. Á. Bakos, Z. Csubry, A. W. Howard, H. Isaacson | Summary: We present the discovery from the TESS mission of two giant planets transiting M dwarf stars: TOI 4201 b and TOI 5344 b. We also provide precise radial velocity measurements and updated […]


Continue.. TOI 4201 b and TOI 5344 b: Discovery of Two Transiting Giant Planets Around M Dwarf Stars and Revised Parameters for Three Others

TOI 4201 b and TOI 5344 b: Discovery of Two Transiting Giant Planets Around M Dwarf Stars and Revised Parameters for Three Others

Posted by dbos MIT

Kavli Affiliate: Alan M. Levine | First 5 Authors: J. D. Hartman, G. Á. Bakos, Z. Csubry, A. W. Howard, H. Isaacson | Summary: We present the discovery from the TESS mission of two giant planets transiting M dwarf stars: TOI 4201 b and TOI 5344 b. We also provide precise radial velocity measurements and […]


Continue.. TOI 4201 b and TOI 5344 b: Discovery of Two Transiting Giant Planets Around M Dwarf Stars and Revised Parameters for Three Others

Current status and desired accuracy of the isotopic production cross-sections relevant to astrophysics of cosmic rays II. Fluorine to Silicon (and updated LiBeB)

Posted by klaurent Stanford

Kavli Affiliate: Igor V. Moskalenko | First 5 Authors: Yoann Génolini, David Maurin, Igor V. Moskalenko, Michael Unger, | Summary: High-precision cosmic-ray data from ongoing and recent past experiments (Voyager, ACE-CRIS, PAMELA, ATIC, CREAM, NUCLEON, AMS-02, CALET, DAMPE) are being released in the tens of MeV/n to multi-TeV/n energy range. Astrophysical and dark matter interpretations […]


Continue.. Current status and desired accuracy of the isotopic production cross-sections relevant to astrophysics of cosmic rays II. Fluorine to Silicon (and updated LiBeB)

Current status and desired accuracy of the isotopic production cross-sections relevant to astrophysics of cosmic rays II. Fluorine to Silicon (and updated LiBeB)

Posted by dbos Stanford

Kavli Affiliate: Igor V. Moskalenko | First 5 Authors: Yoann Génolini, David Maurin, Igor V. Moskalenko, Michael Unger, | Summary: High-precision cosmic-ray data from ongoing and recent past experiments (Voyager, ACE-CRIS, PAMELA, ATIC, CREAM, NUCLEON, AMS-02, CALET, DAMPE) are being released in the tens of MeV/n to multi-TeV/n energy range. Astrophysical and dark matter interpretations […]


Continue.. Current status and desired accuracy of the isotopic production cross-sections relevant to astrophysics of cosmic rays II. Fluorine to Silicon (and updated LiBeB)

A massive hot Jupiter orbiting a metal-rich early-M star discovered in the TESS full frame images

Posted by klaurent MIT

Kavli Affiliate: George R. Ricker | First 5 Authors: Tianjun Gan, Charles Cadieux, Farbod Jahandar, Allona Vazan, Sharon X. Wang | Summary: Observations and statistical studies have shown that giant planets are rare around M dwarfs compared with Sun-like stars. The formation mechanism of these extreme systems remains under debate for decades. With the help […]


Continue.. A massive hot Jupiter orbiting a metal-rich early-M star discovered in the TESS full frame images