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19942026
most citedA Massive Pulsar in a Compact Relativistic Binary

3.9k citations

Showing 2021 · astro-ph.EPShow all

17 papers · 2 filters

astro-ph.EP2021

Radial Distribution of the Dust Comae of Comets 45P/Honda-Mrkos-Pajduusáková and 46P/Wirtanen

C. Lejoly, W. Harris, N. Samarasinha +21

There was an unprecedented opportunity to study the inner dust coma environment, where the dust and gas are not entirely decoupled, of comets 45P/Honda-Mrkos-Pajduusáková (45P/HMP)…

astro-ph.EP2021★ 74 cited

GJ 367b: A dense ultra-short period sub-Earth planet transiting a nearby red dwarf star

Kristine W. F. Lam, Szilárd Csizmadia, Nicola Astudillo-Defru +75

Ultra-short-period (USP) exoplanets have orbital periods shorter than one day. Precise masses and radii of USPs could provide constraints on their unknown formation and evolution p…

astro-ph.EP2021★ 14 cited

Is the orbit of the exoplanet WASP-43b really decaying? TESS and MuSCAT2 observations confirm no detection

Z. Garai, T. Pribulla, H. Parviainen +24

Up to now, WASP-12b is the only hot Jupiter confirmed to have a decaying orbit. The case of WASP-43b is still under debate. Recent studies preferred or ruled out the orbital decay…

astro-ph.EP2021★ 21 cited

The water-ice feature in near-infrared disk-scattered light around HD 142527: Micron-sized icy grains lifted up to the disk surface?

Ryo Tazaki, Koji Murakawa, Takayuki Muto +2

We study the m scattering feature of water ice detected in the outer disk of HD 142527 by performing radiative transfer simulations. We show that an ice mass abundance at the…

astro-ph.EP2021★ 7 cited

Photometry and Long-Slit Spectroscopy of Split Comet C/2019 Y4 (ATLAS)

Oleksandra Ivanova, Igor Luk'yanyk, Dušan Tomko +1

We present an analysis of the photometric and spectroscopic observations of the split comet C/2019 Y4 (ATLAS). Observations were carried out on the 14th and 16th of April 2020 when…

astro-ph.EP2021★ 1 cited

The changing face of AU Mic b: stellar spots, spin-orbit commensurability, and Transit Timing Variations as seen by CHEOPS and TESS

Gy. M. Szabó, D. Gandolfi, A. Brandeker +78

AU Mic is a young planetary system with a resolved debris disc showing signs of planet formation and two transiting warm Neptunes near mean-motion resonances. Here we analyse three…

astro-ph.EP2021★ 55 cited

Stellar Wind Confinement of Evaporating Exoplanet Atmospheres and its Signatures in 1083 nm Observations

Morgan MacLeod, Antonija Oklopčić

Atmospheric escape from close-in exoplanets is thought to be crucial in shaping observed planetary populations. Recently, significant progress has been made in observing this proce…

astro-ph.EP2021★ 4 cited

The Featureless HST/WFC3 Transmission Spectrum of the Rocky Exoplanet GJ 1132b: No Evidence For A Cloud-Free Primordial Atmosphere and Constraints on Starspot Contamination

Jessica E. Libby-Roberts, Zachory K. Berta-Thompson, Hannah Diamond-Lowe +10

Orbiting a M dwarf 12 pc away, the transiting exoplanet GJ 1132b is a prime target for transmission spectroscopy. With a mass of 1.7 Earth masses and radius of 1.1 Earth radii, GJ…

astro-ph.EP2021★ 1 cited

Grazing, non-transiting disintegrating exoplanets observed with the planned Ariel space observatory -- A case study using Kepler-1520b

Zoltán Garai

Disintegrating/evaporating rocky exoplanets can be observed not only as transiting planets, but also in a grazing, non-transiting regime, where the solid body of the planet does no…

astro-ph.EP2021★ 110 cited

Disk Evolution Study Through Imaging of Nearby Young Stars (DESTINYS): Late infall causing disk misalignment and dynamic structures in SU Aur

C. Ginski, S. Facchini, J. Huang +19

Gas-rich circumstellar disks are the cradles of planet formation. As such, their evolution will strongly influence the resulting planet population. In the ESO DESTINYS large progra…

astro-ph.EP2021★ 4 cited

Small Bodies of the Solar System Active at Large Heliocentric Distances: Studies with the 6-Meter Telescope of Sao Ras

A. V. Ivanovaa

A detailed study of comets active at large heliocentric distances (greater than 4 au) which enter the Solar System for the first time and are composed of matter in its elementary,…

astro-ph.EP2021★ 8 cited

Comet C/2011 J2 (LINEAR): Photometry and Stellar transit

Oleksandr Ivanova, Serhi Borysenko, Evgenij Zubko +4

We present results of two-year photometric monitoring of Comet C/2011 J2 (LINEAR) that spans the time period from February 2013 through December 2014, before and after perihelion p…

astro-ph.EP2021★ 6 cited

Small solar system objects on highly inclined orbits: Surface colours and lifetimes

T. Hromakina, I. Belskaya, Yu. Krugly +9

Less than one percent of the discovered small solar system objects have highly inclined orbits (), and revolve around the Sun on near-polar or retrograde orbits. The…

astro-ph.EP2021★ 26 cited

Polarimetry, photometry, and spectroscopy of comet C/2009 P1(Garradd)

Oleksandra Ivanova, Vera Rosenbush, Viktor Afanasiev +1

We present the results of photometry, linear spectropolarimetry, and imaging circular polarimetry ofcomet C/2009 P1 (Garradd) performed at the 6-m telescope BTA of the Special Astr…

astro-ph.EP2021★ 62 cited

Sulfur Ice Astrochemistry: A Review of Laboratory Studies

Duncan V. Mifsud, Zuzana Kanuchova, Peter Herczku +6

Sulfur is the tenth most abundant element in the universe and is known to play a significant role in biological systems. Accordingly, in recent years there has been increased inter…

astro-ph.EP2021★ 9 cited

Comet 2P/Encke in apparition of 2017: II. Polarization and color

Nikolai Kiselev, Vera Rosenbush, Oleksandra Ivanova +5

We present results of imaging polarimetry of comet 2P/Encke performed on January 23, 2017 at the heliocentric (1.052 au) and geocentric (1.336 au) distances and phase angle 46.8 de…

astro-ph.EP2021★ 17 cited

Comet 2P/Encke in apparitions of 2013 and 2017: I. Imaging photometry and long-slit spectroscopy

Vera Rosenbush, Oleksandra Ivanova, Valerii Kleshchonok +4

We present the results of imaging photometric and long-slit spectroscopic observations of comet 2P/Encke performed at the heliocentric distance 0.56 au, geocentric distance 0.65 au…