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19942026
most citedA Massive Pulsar in a Compact Relativistic Binary

3.9k citations

Showing 2020Show all

61 papers · 1 filter

astro-ph.IM2020★ 25 cited

Vacuum ultraviolet photoabsorption spectroscopy of space-related ices: Formation and destruction of solid carbonic acid upon 1~keV electron irradiation

S. Ioppolo, Z. Kanuchová, R. L. James +7

Carbonic acid (H2CO3) is a weak acid relevant to astrobiology which, to date, remains undetected in space. Experimental work has shown that the beta-polymorph of H2CO3 forms under…

astro-ph.EP2020★ 26 cited

Imaging polarimetry and photometry of comet 21P/Giacobini-Zinner

E. Chornaya E. Zubko, I. Luk'yanyk, A. Kochergin +8

We report results of polarimetric observations of comet 21P/Giacobini-Zinner made at phase angles, α=76-78 deg, between 10 and 17 of September 2018, and compare them with previous…

astro-ph.EP2020★ 13 cited

Monitoring polarization in comet 46P/Wirtanen

M. Zheltobryukhov, E. Zubko, E. Chornaya +9

We measure the degree of linear polarization of comet 46P/Wirtanen during two months, embracing the perihelion passage in 2018 December with phase angles ranging from α=18.1 to 46.…

astro-ph.EP2020★ 15 cited

Extremely low linear polarization of comet C/2018 V1 (Machholz-Fujikawa-Iwamoto)

E. Zubko, E. Chornaya, M. Zheltobryukhov +8

We measured the degree of linear polarization P of comet C/2018 V1 (Machholz-Fujikawa-Iwamoto) with the broadband Johnson V filter in mid-November of 2018. Within a radius of \r{ho…

astro-ph.EP2020★ 35 cited

Comet 29P/Schwassmann-Wachmann 1 dust environment from photometric observation at the SOAR Telescope

E. Picazzio, I. V. Luk'yanyk, O. V. Ivanova +4

We report photometric observations of comet 29P/Schwassmann-Wachmann 1 made on August 12, 2016 with the broadband B, V, R and I filters and the SOAR 4.1-meter telescope (Chile). We…

astro-ph.SR2020★ 2 cited

Flare stars in nearby Galactic open clusters based on {\it TESS} data

O. Maryeva, K. Bicz, C. Xia +3

The study is devoted to search for flare stars among confirmed members of Galactic open clusters using high-cadence photometry from {\it TESS} mission. We analyzed 957 high-cadence…

astro-ph.EP2020★ 5 cited

Dynamics of the CO+ coma of comet 29P/Schwasmann-Wachmann 1

O. Ivanova, O. Agapitov, D. Odstrcil +3

Comet-centaur 29P/Schwassmann-Wachmann 1 was observed in CO+ emission and contin-uum during 2007-2009 using the 6-m Big Telescope Alt-azimuth at the Special Astrophysical Observato…

astro-ph.EP2020★ 11 cited

Dust productivity and impact collision of the asteroid (596) Scheila

L. Neslusan, O. Ivanova, M. Husarik +2

Photometric observations of asteroid (596) Scheila were obtained during and after its 2010 outburst. The estimated radius of the body (spherical approximation of the asteroidal bod…

astro-ph.EP2020★ 5 cited

Results of Complex Observations of Asteroid (596) Scheila at the Sanglokh International Astronomical Observatory

G. I. Kokhirova, O. V. Ivanova, F. Dzh. Rakhmatullaeva +3

Results of astrometric and BVRI photometric observations of the active asteroid (596) Scheila are presented. The observations were carried out at the Zeiss 1000 telescope of the Sa…

astro-ph.SR2020★ 15 cited

Wind mass transfer in S-type symbiotic binaries III. Confirmation of a wind focusing in EG Andromedae from the nebular [OIII]λ5007 line

N. Shagatova, A. Skopal, S. Yu. Shugarov +3

Context. The structure of the wind from the cool giants in symbiotic binaries carries important information for understanding the wind mass transfer to their white dwarf companions…

astro-ph.EP2020★ 7 cited

Astrometric and photometric observations of comet 29P/Schwassmann--Wachmann 1 at the Sanglokh international astronomical observatory

G. I. Kokhirova, O. V. Ivanova, F. Dzh. Rakhmatullaeva +2

Astrometric and photometric observations of the comet 29P/Schwassmann-Wachmann 1 were performed at the Zeiss-1000 telescope of the International Astronomical Observatory Sanglokh (…

astro-ph.EP2020★ 9 cited

The 2017 May 20 stellar occultation by the elongated centaur (95626) 2002 GZ

P. Santos-Sanz, J. L. Ortiz, B. Sicardy +56

We predicted a stellar occultation of the bright star Gaia DR1 4332852996360346368 (UCAC4 385-75921) (m= 14.0 mag) by the centaur 2002 GZ for 2017 May 20$^{\rm th}…

astro-ph.SR2020★ 9 cited

Semi-empirical models of spicule from inversion of Ca II 8542 Å line

D. Kuridze, H. Socas-Navarro, J. Koza +1

We study a solar spicule observed off-limb using high-resolution imaging spectroscopy in the Ca II 8542 Å line obtained with the CRisp Imaging SpectroPolarimeter (CRISP) on the Swe…

gr-qc2020★ 2 cited

Charged fluids encircling compact objects: force representations and conformal geometries

Jiří Kovář, Yasufumi Kojima, Petr Slaný +2

Charged fluids rotating around compact objects can form unique equilibrium structures when ambient large-scale electromagnetic fields combine with strong gravity. Equatorial as wel…

astro-ph.SR2020★ 13 cited

Electron Densities in the Solar Corona Measured Simultaneously in the Extreme-Ultraviolet and Infra-Red

Jaroslav Dudík, Giulio Del Zanna, Ján Rybák +5

Accurate measurements of electron density are critical for determination of the plasma properties in the solar corona. We compare the electron densities diagnosed from Fe XIII line…

astro-ph.SR2020★ 5 cited

Asteroseismology of the heartbeat star KIC 5006817

J. Merc, Cs. Kalup, R. S. Rathour +2

This paper summarizes the project work on asteroseismology at the ERASMUS+ GATE 2020 Summer school on space satellite data. The aim was to do a global asteroseismic analysis of KIC…

astro-ph.GA2020

Sites of star formation in the tidal structures

Anatoly Zasov, Anna Saburova, Oleg Egorov

We give a short review of the current results of studying of star formation sites observed beyond the main discs of galaxies in different interacting systems: Arp 270, Arp 194, Arp…

astro-ph.EP2020★ 21 cited

An enhanced slope in the transmission spectrum of the hot Jupiter WASP-104b

G. Chen, E. Palle, H. Parviainen +25

We present the optical transmission spectrum of the hot Jupiter WASP-104b based on one transit observed by the blue and red channels of the DBSP spectrograph at the Palomar 200-inc…

astro-ph.HE2020★ 48 cited

Search for Continuous Gravitational Waves from Scorpius X-1 in LIGO O2 Data

Yuanhao Zhang, Maria Alessandra Papa, Badri Krishnan +1

We present the results of a search in LIGO O2 public data for continuous gravitational waves from the neutron star in the low-mass X-ray binary Scorpius X-1. We search for signals…

astro-ph.GA2020

Observations of lenticular galaxies at the 6m telescope of the Special Astrophysical Observatory

Olga K. Sil'chenko

This is a historical review covering the last 30 years of the observational study of lenticular galaxies at the 6m telescope BTA of the Special Astrophysical Observatory of the Rus…

astro-ph.SR2020★ 23 cited

Quiet-Sun hydrogen Lyman-alpha line profile derived from SOHO/SUMER solar-disk observations

S. Gunar, P. Schwartz, J. Koza +1

The solar radiation in the Lyman-alpha spectral line of hydrogen plays a significant role in the illumination of chromospheric and coronal structures, such as prominences, spicules…

astro-ph.HE2020★ 18 cited

Implications of the lowest frequency detection of the persistent counterpart of FRB121102

L Resmi, J Vink, C H Ishwara-Chandra

Context. The repeating FRB121102 is so far the only extra-galactic Fast Radio Burst found to be associated with a counterpart, a steady radio source with a nearly flat spectral ene…

astro-ph.EP2020★ 30 cited

Stellar occultations enable milliarcsecond astrometry for Trans-Neptunian objects and Centaurs

F. L. Rommel, F. Braga-Ribas, J. Desmars +66

Trans-Neptunian objects (TNOs) and Centaurs are remnants of our planetary system formation, and their physical properties have invaluable information for evolutionary theories. Ste…

astro-ph.HE2020★ 4 cited

Observations of ultraluminous X-ray sources with the 6-m telescope of the SAO RAS

A. Vinokurov, K. Atapin, Y. Solovyeva +2

The nature of ultraluminous X-ray sources (ULXs) is not yet fully understood but it can be done in the most efficient way by analyzing its optical emission and environment. We pres…