output
20002026
most citedThe LOFAR Two-metre Sky Survey -- V. Second data release

489 citations

Showing 2020 · astro-ph.SRShow all

6 papers · 2 filters

astro-ph.SR2020★ 31 cited

Molecular remnant of Nova 1670 (CK Vulpeculae). II. A three-dimensional view on the gas distribution and velocity field

T. Kamiński, W. Steffen, V. Bujarrabal +3

CK Vul is the remnant of an energetic eruption known as Nova 1670 that is thought to be caused by a stellar merger. The remnant is composed of (1) a large hourglass nebula of recom…

astro-ph.SR2020★ 1 cited

Rapid evolution of [WC] stars in the Magellanic Clouds

Marcin Hajduk

We obtained new spectra of fourteen Magellanic Cloud planetary nebulae with the South African Large Telescope to determine heating rates of their central stars and to verify evolut…

astro-ph.SR2020★ 10 cited

The cooling-down central star of the planetary nebula SwSt\,1: a late thermal pulse in a massive post-AGB star?

Marcin Hajduk, Helge Todt, Wolf-Rainer Hamann +3

SwSt 1 (PN G001.5-06.7) is a bright and compact planetary nebula containing a late [WC]-type central star. Previous studies suggested that the nebular and stellar lines are slowly…

astro-ph.SR2020★ 3 cited

Validating post-AGB candidates in the LMC and SMC using SALT spectra

Ryszard Szczerba, Marcin Hajduk, Yakiv V. Pavlenko +8

We selected a sample of post-AGB candidates in the Magellanic Clouds on the basis of their near- and mid-infrared colour characteristics. Fifteen of the most optically bright post-…

astro-ph.SR2020★ 22 cited

Interferometric Imaging with LOFAR Remote Baselines of the Fine Structures of a Solar Type IIIb Radio Burst

PeiJin Zhang, Pietro Zucca, Sarrvesh Seethapuram Sridhar +8

Context. Solar radio bursts originate mainly from high energy electrons accelerated in solar eruptions like solar flares, jets, and coronal mass ejections. A subcategory of solar r…

astro-ph.SR2020★ 5 cited

The frequency drift and fine structures of Solar S-bursts in the high frequency band of LOFAR

PeiJin Zhang, Pietro Zucca, ChuanBing Wang +8

Solar S-bursts are short duration ( s at decameter wavelengths) radio bursts that have been observed during periods of moderate solar activity, where S stands for short. The fr…