activity
20172026
most citedPhotometric variability of TW~Hya from seconds to years as seen from space and the ground in 2013-2017

37 citations · 58 across the 10 of their papers we have counts for

collaborators

10 papers

astro-ph.SR2026

The FU Ori outburst of PR Ori B

Carlos Contreras Pena, Zsofia Nagy, Gregory Herczeg +42

We report the discovery of a nearby FU Ori-type outburst (FUor), PR Ori B, in the L1641 cluster of the Orion star-forming region. The high-amplitude variability was first identifie…

astro-ph.SR2026

Gaia21bja: pre-main sequence star with quasi-periodic bursts

Ádám Mátéfy, Zsófia Nagy, Ágnes Kóspál +12

Gaia21bja is a Gaia alerted young stellar object (YSO) that exhibits at least seven quasi-peridoic brightenings over a 20 year-long light curve with durations of 1.5-2 years and am…

astro-ph.SR2026

Gaia20dsk: A new MNor discovered by the GLORIOUS collaboration

Patrik E. Németh, Fernando Cruz-Sáenz de Miera, Ágnes Kóspál +10

Context. Among known young stellar objects (YSOs), those exhibiting the most dramatic increases in brightness due to sudden increase in mass accretion rate are eruptive young stars…

astro-ph.SR2025

The mass distribution of clumpy accretion onto the nearby young star TW Hya

Tao Ji, Javier Serna, Gregory J. Herczeg +12

The proliferation of high time-resolution and decades-long monitoring of classical T Tauri stars provides a vast opportunity to test the variability of the star-disk connections. H…

astro-ph.SR2025★ 8 cited

The Outbursting YSOs Catalogue (OYCAT)

C. Contreras Peña, J. -E. Lee, G. Herczeg +39

YSOs can display unpredictable and high-amplitude rises in brightness that can last from a few months to possibly over 100 years. These types of outbursts are explained by large ch…

astro-ph.SR2025★ 6 cited

Time-resolved protoplanetary disk physics in DQ Tau with JWST

Á. Kóspál, P. Ábrahám, V. V. Akimkin +17

Accretion variability is ubiquitous in YSOs. While large outbursts may strongly affect the disk, the effects of moderate bursts are less understood. We aim to study the physical re…

astro-ph.SR2025

The ODYSSEUS Survey. Characterizing magnetospheric geometries and hotspot structures in T Tauri stars

Caeley V. Pittman, C. C. Espaillat, Connor E. Robinson +20

Magnetospheric accretion is a key process that shapes the inner disks of T Tauri stars, controlling mass and angular momentum evolution. It produces strong ultraviolet and optical…

astro-ph.SR2025★ 4 cited

Short- and long-term variations of the high mass accretion rate classical T Tauri star DR Tau

Gabriella Zsidi, Ágnes Kóspál, Péter Ábrahám +20

Classical T Tauri stars are newly formed, low mass stars which may display both periodic and random variations in their brightness. The interaction between the star and its circums…

astro-ph.SR2018★ 37 cited

Photometric variability of TW~Hya from seconds to years as seen from space and the ground in 2013-2017

M. Siwak, W. Ogloza, A. F. J. Moffat +9

This is the final photometric study of TW Hya based on new MOST satellite observations. During 2014 and 2017 the light curves showed stable 3.75 and 3.69 d quasi-periodic oscillati…

astro-ph.IM2017★ 3 cited

UVSat: a concept of an ultraviolet/optical photometric satellite

A. Pigulski, A. Baran, M. Bzowski +25

Time-series photometry from space in the ultraviolet can be presently done with only a few platforms, none of which is able to provide wide-field long-term high-cadence photometry.…