activity
20092025
most citedESPRESSO@VLT -- On-sky performance and first results

537 citations · 4.7k across the 97 of their papers we have counts for

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Showing 2016 · astro-ph.EPShow all

5 papers · 2 filters

astro-ph.EP2016★ 8 cited

How eclipse time variations, eclipse duration variations, and radial velocities can reveal S-type planets in close eclipsing binaries

M. Oshagh, R. Heller, S. Dreizler

While about a dozen transiting planets have been found in wide orbits around an inner, close stellar binary (so-called "P-type planets"), no planet has yet been detected orbiting o…

astro-ph.EP2016★ 18 cited

Can stellar activity make a planet seem misaligned?

M. Oshagh, S. Dreizler, N. C. Santos +2

Several studies have shown that the occultation of stellar active regions by the transiting planet can generate anomalies in the high-precision transit light curves, and these anom…

astro-ph.EP2016★ 18 cited

Is the activity level of HD 80606 influenced by its eccentric planet?

P. Figueira, A. Santerne, A. Suárez Mascareño +14

Aims: Several studies suggest that the activity level of a planet-host star can be influenced by the presence of a close-by orbiting planet. Moreover, the interaction mechanisms th…

astro-ph.EP2016★ 106 cited

Uncovering the planets and stellar activity of CoRoT-7 using only radial velocities

J. P. Faria, R. D. Haywood, B. J. Brewer +4

Stellar activity can induce signals in the radial velocities of stars, complicating the detection of orbiting low-mass planets. We present a method to determine the number of plane…

astro-ph.EP2016★ 49 cited

Modelling the Rossiter-McLaughlin Effect: Impact of the Convective Centre-to-Limb Variations in the Stellar Photosphere

H. M. Cegla, M. Oshagh, C. A. Watson +3

Observations of the Rossiter-McLaughlin (RM) effect provide information on star-planet alignments, which can inform planetary migration and evolution theories. Here, we go beyond t…