output
19962026
most citedThe Eleventh and Twelfth Data Releases of the Sloan Digital Sky Survey: Final Data from SDSS-III

2.5k citations

Showing 2020 · astro-ph.EPShow all

71 papers · 2 filters

astro-ph.EP2020★ 31 cited

First detection of orbital motion for HD 106906 b: A wide-separation exoplanet on a Planet Nine-like orbit

Meiji M. Nguyen, Robert J. De Rosa, Paul Kalas

HD 106906 is a 15 Myr old short-period (49 days) spectroscopic binary that hosts a wide-separation (737 au) planetary-mass () common proper motion companion, H…

astro-ph.EP2020★ 60 cited

Two young planetary systems around field stars with ages between 20-320 Myr from TESS

George Zhou, Samuel N. Quinn, Jonathan Irwin +46

Planets around young stars trace the early evolution of planetary systems. We report the discovery and validation of two planetary systems with ages Myr from observa…

astro-ph.EP2020★ 28 cited

TOI-519 b: a short-period substellar object around an M dwarf validated using multicolour photometry and phase curve analysis

H. Parviainen, E. Palle, M. R. Zapatero-Osorio +43

Context: We report the discovery of TOI-519 b (TIC 218795833), a transiting substellar object (R = 1.07 RJup) orbiting a faint M dwarf (V = 17.35) on a 1.26 d orbit. Brown dwarfs a…

astro-ph.EP2020★ 29 cited

Science Extraction from TESS Observations of Known Exoplanet Hosts

Stephen R. Kane, Jacob L. Bean, Tiago L. Campante +15

The transit method of exoplanet discovery and characterization has enabled numerous breakthroughs in exoplanetary science. These include measurements of planetary radii, mass-radiu…

astro-ph.EP2020★ 47 cited

The CARMENES search for exoplanets around M dwarfs -- LP 714-47b (TOI 442.01): Populating the Neptune desert

S. Dreizler, I., J. +134

We report the discovery of a Neptune-like planet (LP 714-47 b, P = 4.05204 d, m_b = 30.8 +/- 1.5 M_earth , R_b = 4.7 +/- 0.3 R_earth ) located in the 'hot Neptune desert'. Confirma…

astro-ph.EP2020★ 42 cited

The Magellan-TESS Survey I: Survey Description and Mid-Survey Results

Johanna Teske, Sharon Xuesong Wang, Angie Wolfgang +66

revealed that roughly one-third of Sun-like stars host planets orbiting within 100 days and between the size of Earth and Neptune. How do these planets form, what are they…

astro-ph.EP2020★ 128 cited

Beyond Equilibrium Temperature: How the Atmosphere/Interior Connection Affects the Onset of Methane, Ammonia, and Clouds in Warm Transiting Giant Planets

Jonathan J. Fortney, Channon Visscher, Mark S. Marley +5

The atmospheric pressure-temperature profiles for transiting giant planets cross a range of chemical transitions. Here we show that the particular shape of these irradiated profile…

astro-ph.EP2020★ 17 cited

TOI 122b and TOI 237b, two small warm planets orbiting inactive M dwarfs, found by \textit{TESS}

William C. Waalkes, Zachory K. Berta-Thompson, Karen A. Collins +39

We report the discovery and validation of TOI 122b and TOI 237b, two warm planets transiting inactive M dwarfs observed by \textit{TESS}. Our analysis shows TOI 122b has a radius o…

astro-ph.EP2020★ 19 cited

Possible Transient Luminous Events observed in Jupiter's upper atmosphere

Rohini S. Giles, Thomas K. Greathouse, Bertrand Bonfond +10

11 transient bright flashes were detected in Jupiter's atmosphere using the UVS instrument on the Juno spacecraft. These bright flashes are only observed in a single spin of the sp…

astro-ph.EP2020★ 28 cited

Spitzer Reveals Evidence of Molecular Absorption in the Atmosphere of the Hot Neptune LTT 9979b

Diana Dragomir, Ian J. M. Crossfield, Bjorn Benneke +27

Non-rocky sub-jovian exoplanets in high irradiation environments are rare. LTT 9979b, also known as TESS Object of Interest (TOI) 193.01, is one of the few such planets discovered…

astro-ph.EP2020★ 26 cited

Gemini Planet Imager Spectroscopy of the Dusty Substellar Companion HD 206893 B

K. Ward-Duong, J. Patience, K. Follette +55

We present new near-infrared Gemini Planet Imager (GPI) spectroscopy of HD 206893 B, a substellar companion orbiting within the debris disk of its F5V star. The , , , and…

astro-ph.EP2020★ 43 cited

Measuring Transit Signal Recovery in the Kepler Pipeline IV: Completeness of the DR25 Planet Candidate catalog

Jessie L. Christiansen, Bruce D. Clarke, Christopher J. Burke +12

In this work we empirically measure the detection efficiency of Kepler pipeline used to create the final Kepler Threshold Crossing Event (TCE; Twicken et al. 2016) and planet candi…

astro-ph.EP2020★ 12 cited

Spectropolarimetry of primitive phototrophs as global surface biosignatures

William B. Sparks, M. Niki Parenteau, Robert E. Blankenship +5

Photosynthesis is an ancient metabolic process that began on the early Earth, offering plentiful energy to organisms that utilize it, to the extent that they can achieve global sig…

astro-ph.EP2020★ 19 cited

Evidence for sulfur-bearing species on Callisto's leading hemisphere: Sourced from Jupiter's irregular satellites or Io?

Richard J. Cartwright, Tom A. Nordheim, Dale P. Cruikshank +5

We investigated whether sulfur-bearing species are present on the icy Galilean moon Callisto by analyzing eight near-infrared reflectance spectra collected over a wide range of sub…

astro-ph.EP2020★ 25 cited

TOI 540 b: A Planet Smaller than Earth Orbiting a Nearby Rapidly Rotating Low-mass Star

Kristo Ment, Jonathan Irwin, David Charbonneau +20

We present the discovery of TOI 540 b, a hot planet slightly smaller than Earth orbiting the low-mass star 2MASS J05051443-4756154. The planet has an orbital period of $P = 1.23914…

astro-ph.EP2020★ 43 cited

Discovery of a hot, transiting, Earth-sized planet and a second temperate, non-transiting planet around the M4 dwarf GJ 3473 (TOI-488)

J. Kemmer, S. Stock, D. Kossakowski +93

We present the confirmation and characterisation of GJ 3473 b (G 50--16, TOI-488.01), a hot Earth-sized planet orbiting an M4 dwarf star, whose transiting signal ($P=1.1980035\pm0.…

astro-ph.EP2020★ 44 cited

TOI-481 b & TOI-892 b: Two long period hot Jupiters from the Transiting Exoplanet Survey Satellite

Rafael Brahm, Louise D. Nielsen, Robert A. Wittenmyer +75

We present the discovery of two new 10-day period giant planets from the Transiting Exoplanet Survey Satellite () mission, whose masses were precisely determined using a wide…

astro-ph.EP2020★ 60 cited

Cluster Difference Imaging Photometric Survey. II. TOI 837: A Young Validated Planet in IC 2602

L. G. Bouma, J. D. Hartman, R. Brahm +42

We report the discovery of TOI 837b and its validation as a transiting planet. We characterize the system using data from the NASA TESS mission, the ESA Gaia mission, ground-based…

astro-ph.EP2020★ 183 cited

A Giant Planet Candidate Transiting a White Dwarf

Andrew Vanderburg, Saul A. Rappaport, Siyi Xu +61

Astronomers have discovered thousands of planets outside the solar system, most of which orbit stars that will eventually evolve into red giants and then into white dwarfs. During…

astro-ph.EP2020★ 102 cited

A super-Earth and a sub-Neptune orbiting the bright, quiet M3 dwarf TOI-1266

B. -O. Demory, F. J. Pozuelos, Y. Gomez Maqueo Chew +70

We report the discovery and characterisation of a super-Earth and a sub-Neptune transiting the bright (), quiet, and nearby (37 pc) M3V dwarf TOI-1266. We validate the plane…

astro-ph.EP2020★ 49 cited

The TESS-Keck Survey II: An Ultra-Short Period Rocky Planet and its Siblings Transiting the Galactic Thick-Disk Star TOI-561

Lauren M. Weiss, Fei Dai, Daniel Huber +61

We report the discovery of TOI-561, a multi-planet system in the galactic thick disk that contains a rocky, ultra-short period planet (USP). This bright () star hosts three…

astro-ph.EP2020★ 34 cited

TKS III: A Stellar Obliquity Measurement of TOI-1726 c

Fei Dai, Arpita Roy, Benjamin Fulton +43

We report the measurement of a spectroscopic transit of TOI-1726 c, one of two planets transiting a G-type star with = 6.9 in the Ursa Major Moving Group (400 Myr). With…

astro-ph.EP2020★ 23 cited

The TOI-763 system: sub-Neptunes orbiting a Sun-like star

M. Fridlund, J. Livingston, D. Gandolfi +51

We report the discovery of a planetary system orbiting TOI-763 (aka CD-39 7945), a , high proper motion G-type dwarf star that was photometrically monitored by the TESS spa…

astro-ph.EP2020★ 51 cited

Prospects for Characterizing the Haziest Sub-Neptune Exoplanets with High Resolution Spectroscopy

Callie E. Hood, Jonathan J. Fortney, Michael R. Line +6

Observations to characterize planets larger than Earth but smaller than Neptune have led to largely inconclusive interpretations at low spectral resolution due to hazes or clouds t…