The Daily Brew
Selected astro-ph abstracts for Friday 2021 April 30
- The Loudest Stellar Heartbeat: Characterizing the most extreme amplitude heartbeat star system
T. Jayasinghe, C. S. Kochanek, J. Strader, K. Z. Stanek, P. J. Vallely, Todd A. Thompson, J. T. Hinkle, B. J. Shappee, A. K. Dupree, K. Auchettl, L. Chomiuk, E. Aydi, K. Dage, A. Hughes, L. Shishkovsky, K. V. Sokolovsky, S. Swihart, K. T. Voggel, I. B. Thompson
[ arXiv:2104.13925v1 | PDF File ]
- Hubble Space Telescope UV and H$\alpha$ Measurements of the Accretion Excess Emission from the Young Giant Planet PDS 70 b
Yifan Zhou, Brendan P. Bowler, Kevin R. Wagner, Glenn Schneider, Dániel Apai, Adam L. Kraus, Laird M. Close, Gregory J. Herczeg, Min Fang
[ arXiv:2104.13934v1 | PDF File ]
- What controls the UV-to-X-ray continuum shape in quasars?
John D. Timlin III, W. N. Brandt, Ari Laor
[ arXiv:2104.13938v1 | PDF File ]
- True masses of the long-period companions to HD 92987 and HD 221420 from Hipparcos-Gaia astrometry
Alexander Venner, Andrew Vanderburg, Logan A. Pearce
[ arXiv:2104.13941v1 | PDF File ]
- A discontinuity in the luminosity-mass relation and fluctuations in the evolutionary tracks of low-mass and low-metallicity stars at the Gaia M-dwarf gap
Santana Mansfield, Pavel Kroupa
[ arXiv:2104.13951v1 | PDF File ]
- On the maximum helium content of multiple populations in the globular cluster NGC6752
Fabrice Martins (1), William Chantereau (2), Corinne Charbonnel (3,4) ((1) LUPM, CNRS, Montpellier University, (2) Strasbourg University, CNRS, (3) University of Geneva, (4) IRAP, CNRS, Toulouse University)
[ arXiv:2104.13988v1 | PDF File ]
- Beyond spectroscopy. I. Metallicities, distances, and age estimates for over twenty million stars from SMSS DR2 and Gaia EDR3
Yang Huang, Timothy C. Beers, Christian Wolf, Young Sun Lee, Christopher A. Onken, Haibo Yuan, Derek Shank, Huawei Zhang, Chun Wang, Jianrong Shi, Zhou Fan
[ arXiv:2104.14154v1 | PDF File ]
- Folded transit photometry
Ma. Janelle Manuel, Nathaniel Hermosa
[ arXiv:2104.14233v1 | PDF File ]
- The behaviour of lithium at high metallicity in the Milky Way -- Selection effects in the samples and the possible role of atomic diffusion
C.Charbonnel, S.Borisov, N.Prantzos, P. De Laverny
[ arXiv:2104.14311v1 | PDF File ]
- Age and helium content of the open cluster NGC 6791 from multiple eclipsing binary members. III. Constraints from a subgiant
K. Brogaard, F. Grundahl, E. L. Sandquist, D. Slumstrup, M. L. Jensen, J. B. Thomsen, J. H. Jørgensen, J. R. Larsen, S. T. Bjørn, C. T. G. Sørensen, H. Bruntt, T. Arentoft, S. Frandsen, J. Jessen-Hansen, J. A. Orosz, R. Mathieu, A. Geller, N. Ryde, D. Stello, S. Meibom, I. Platais
[ arXiv:2104.14330v1 | PDF File ]
- Pseudo-2D Modelling of Heat Redistribution Through H$_2$ Thermal Dissociation/Recombination: Consequences for Ultra-Hot Jupiters
Alexander Roth, Benjamin Drummond, Eric Hébrard, Pascal Tremblin, Jayesh Goyal, Nathan Mayne
[ arXiv:2104.14376v1 | PDF File ]
- The aox--HeII EW Connection in Radio-Loud Quasars
John D. Timlin III, Shifu Zhu, W. Niel Brandt, Ari Laor
[ arXiv:2104.14407v1 | PDF File ]
- Uranus' hidden narrow rings
M.M. Hedman, R.O. Chancia
[ arXiv:2104.14482v1 | PDF File ]
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