Publications (10)
Affordable echelle spectroscopy of the eccentric HAT-P-2, WASP-14 and XO-3 planetary systems with a sub-meter-class telescope
Z. Garai, T. Pribulla, Ľ. Hambálek +6
A new off-shelf low-cost echelle spectrograph was installed recently on the 0.6m telescope at the Stará Lesná Observatory (Slovakia). In this paper we describe in details the rad…
Observations and Implications of Large-Amplitude Longitudinal Oscillations in a Solar Filament
M. Luna, K. Knizhnik, K. Muglach +4
On 20 August 2010 an energetic disturbance triggered large-amplitude longitudinal oscillations in a nearby filament. The triggering mechanism appears to be episodic jets connecting…
No variations in transit times for Qatar-1 b
G. Maciejewski, M. Fernández, F. J. Aceituno +11
The transiting hot Jupiter planet Qatar-1 b was presented to exhibit variations in transit times that could be of perturbative nature. A hot Jupiter with a planetary companion on a…
Partially-erupting prominences: a comparison between observations and model-predicted observables
D. Tripathi, S. E. Gibson, J. Qiu +4
AIM: To investigate several partially-erupting prominences to study their relationship with other CME-associated phenomena and to compare these observations with observables predic…
Helio2024 Science White Paper: ngGONG -- Future Ground-based Facilities for Research in Heliophysics and Space Weather Operational Forecast
Alexei A. Pevtsov, V. Martinez-Pillet, H. Gilbert +12
Long-term synoptic observations of the Sun are critical for advancing our understanding of Sun as an astrophysical object, understanding the solar irradiance and its role in solar-…
Ground-based Synoptic Studies of the Sun
Sanjay Gosain, V. Martinez Pillet, A. Pevtsov +15
Ground-based synoptic solar observations provide critical contextual data used to model the large-scale state of the heliosphere. The next decade will see a combination of ground-b…
Search for transiting exoplanets and variable stars in the open cluster NGC 7243
Z. Garai, T. Pribulla, L. Hambálek +23
We report results of the first five observing campaigns for the open stellar cluster NGC 7243 in the frame of project Young Exoplanet Transit Initiative (YETI). The project focuses…
Observational Study of Large Amplitude Longitudinal Oscillations in a Solar Filament
K. Knizhnik, M. Luna, K. Muglach +3
On 20 August 2010 an energetic disturbance triggered damped large-amplitude longitudinal (LAL) oscillations in almost an entire filament. In the present work we analyze this period…
Constraints on a second planet in the WASP-3 system
G. Maciejewski, A. Niedzielski, A. Wolszczan +30
There have been previous hints that the transiting planet WASP-3 b is accompanied by a second planet in a nearby orbit, based on small deviations from strict periodicity of the obs…
Multi-site campaign for transit timing variations of WASP-12 b: possible detection of a long-period signal of planetary origin
G. Maciejewski, D. Dimitrov, M. Seeliger +38
The transiting planet WASP-12 b was identified as a potential target for transit timing studies because a departure from a linear ephemeris was reported in the literature. Such dev…