The bright star
- Home
- Search Results
- Page 1 of 1
Search for: All records
-
Total Resources2
- Resource Type
-
00020
- Availability
-
20
- Author / Contributor
- Filter by Author / Creator
-
-
Basu, Sarbani (2)
-
Buzasi, Derek (2)
-
García, Rafael A. (2)
-
Huber, Daniel (2)
-
Kjeldsen, Hans (2)
-
Stokholm, Amalie (2)
-
Winther, Mark L. (2)
-
Aguirre, Víctor Silva (1)
-
Angelou, George (1)
-
Ayres, Thomas R. (1)
-
Baliunas, Sallie (1)
-
Ball, Warrick H. (1)
-
Barclay, Thomas (1)
-
Beck, Paul G. (1)
-
Bedding, Timothy R. (1)
-
Bell, Keaton J. (1)
-
Benomar, Othman (1)
-
Bossini, Diego (1)
-
Breton, Sylvain N. (1)
-
Bugnet, Lisa (1)
-
- Filter by Editor
-
-
& Spizer, S. M. (0)
-
& . Spizer, S. (0)
-
& Ahn, J. (0)
-
& Bateiha, S. (0)
-
& Bosch, N. (0)
-
& Brennan K. (0)
-
& Brennan, K. (0)
-
& Chen, B. (0)
-
& Chen, Bodong (0)
-
& Drown, S. (0)
-
& Ferretti, F. (0)
-
& Higgins, A. (0)
-
& J. Peters (0)
-
& Kali, Y. (0)
-
& Ruiz-Arias, P.M. (0)
-
& S. Spitzer (0)
-
& Sahin. I. (0)
-
& Spitzer, S. (0)
-
& Spitzer, S.M. (0)
-
(submitted - in Review for IEEE ICASSP-2024) (0)
-
-
Have feedback or suggestions for a way to improve these results?
!
Note: When clicking on a Digital Object Identifier (DOI) number, you will be taken to an external site maintained by the publisher.
Some full text articles may not yet be available without a charge during the embargo (administrative interval).
What is a DOI Number?
Some links on this page may take you to non-federal websites. Their policies may differ from this site.
-
Abstract λ Ser hosts a hot Neptune with a minimum mass of 13.6M ⊕and a 15.5 day orbit. It also appears to be a solar analog, with a mean rotation period of 25.8 days and surface differential rotation very similar to the Sun. We aim to characterize the fundamental properties of this system and constrain the evolutionary pathway that led to its present configuration. We detect solar-like oscillations in time series photometry from the Transiting Exoplanet Survey Satellite, and we derive precise asteroseismic properties from detailed modeling. We obtain new spectropolarimetric data, and we use them to reconstruct the large-scale magnetic field morphology. We reanalyze the complete time series of chromospheric activity measurements from the Mount Wilson Observatory, and we present new X-ray and ultraviolet observations from the Chandra and Hubble space telescopes. Finally, we use the updated observational constraints to assess the rotational history of the star and estimate the wind braking torque. We conclude that the remaining uncertainty on the stellar age currently prevents an unambiguous interpretation of the properties ofλ Ser, and that the rate of angular momentum loss appears to be higher than for other stars with a similar Rossby number. Future asteroseismic observations may help to improve the precision of the stellar age. -
Aguirre, Víctor Silva ; Stello, Dennis ; Stokholm, Amalie ; Mosumgaard, Jakob R. ; Ball, Warrick H. ; Basu, Sarbani ; Bossini, Diego ; Bugnet, Lisa ; Buzasi, Derek ; Campante, Tiago L. ; et al ( , The Astrophysical Journal)