Keele Astrophysics Group

Automatic search for Keele authors in `astro-ph' in past 12 months

1. arXiv:2201.10026 [pdf, other]
2. arXiv:2201.10018 [pdf, other]
Title: The VMC survey -- XLV. Proper motion of the outer LMC and the impact of the SMC
Comments: 21 pages, 21 figures
Subjects: Astrophysics of Galaxies (astro-ph.GA)
3. arXiv:2201.09945 [pdf, other]
Title: ALMA Observations of Molecular Complexity in the Large Magellanic Cloud: The N105 Star-Forming Region
Authors: Marta Sewiło (NASA Goddard Space Flight Center, CRESST II, University of Maryland College Park), Martin Cordiner (NASA GSFC, Catholic University of America), Steven B. Charnley (NASA GSFC), Joana M. Oliveira (Keele University), Emmanuel Garcia Berrios (University of Illinois Urbana-Champaign), Peter Schilke (University of Cologne), Jacob L. Ward (Heidelberg University), Jennifer Wiseman (NASA GSFC), Remy Indebetouw (University of Virginia, NRAO), Kazuki Tokuda (Osaka Prefecture University, NAOJ), Jacco Th. van Loon (Keele University), Álvaro Sánchez-Monge (University of Cologne), Veronica Allen (University of Groningen), C.-H. Rosie Chen (Max-Planck-Institute for Radio Astronomy), Roya Hamedani Golshan (University of Cologne), Agata Karska (Nicolaus Copernicus University), et al. (4 additional authors not shown)
Comments: 75 pages, 48 figures, 7 tables (including appendices); Accepted for publication in the Astrophysical Journal
Subjects: Astrophysics of Galaxies (astro-ph.GA)
4. arXiv:2201.07727 [pdf, other]
5. arXiv:2201.05359 [pdf, other]
Title: V456 Cyg: An eclipsing binary with tidally perturbed g-mode pulsations
Comments: 8 pages, 6 figures, 3 tables. Accepted for publication in Astronomy & Astrophysics on 12 January 2022
Subjects: Solar and Stellar Astrophysics (astro-ph.SR)
6. arXiv:2201.04518 [pdf, other]
Title: The atmosphere and architecture of WASP-189 b probed by its CHEOPS phase curve
Comments: 25 pages, 16 figures, 5 tables (including the appendix); accepted for publication in A&A
Subjects: Earth and Planetary Astrophysics (astro-ph.EP); Solar and Stellar Astrophysics (astro-ph.SR)
7. arXiv:2201.04004 [pdf, ps, other]
Title: V4334 Sgr (Sakurai's Object): still churning out the dust
Authors: A. Evans (Astrophysics Group, Keele University), D. P. K. Banerjee (Physical Research Laboratory, Ahmedabad, India), T. R. Geballe (Gemini Observatory), R. D. Gehrz, C. E. Woodward (Minnesota Institute for Astrophysics), K. Hinkle, R. R. Joyce (National Optical-Infrared Astronomy Research Laboratory), M. Shahbandeh (Physics, Florida State University)
Comments: MNRAS, accepted
Subjects: Solar and Stellar Astrophysics (astro-ph.SR); Astrophysics of Galaxies (astro-ph.GA)
8. arXiv:2201.03570 [pdf, other]
9. arXiv:2201.02516 [pdf, ps, other]
Title: Rediscussion of eclipsing binaries. Paper VIII. The doubly-eclipsing quadruple star system V498 Cygni
Authors: John Southworth
Comments: Accepted for publication in the April 2022 edition of The Observatory. 16 pages, 7 black and white figures, 5 tables
Subjects: Solar and Stellar Astrophysics (astro-ph.SR)
10. arXiv:2201.02515 [pdf, ps, other]
Title: The transiting planetary system WASP-86/KELT-12: TESS provides the casting vote
Comments: Accepted for publication in the February 2022 edition of The Observatory. 11 pages, 4 black and white figures, 3 tables
Subjects: Earth and Planetary Astrophysics (astro-ph.EP); Instrumentation and Methods for Astrophysics (astro-ph.IM)
11. arXiv:2112.13448 [pdf, other]
12. arXiv:2112.13425 [pdf, other]
Title: Optical and near-infrared spectroscopy of Nova V2891 Cygni: evidence for shock-induced dust formation
Authors: Vipin Kumar (1,2), Mudit K. Srivastava (1), Dipankar P.K. Banerjee (1), C. E. Woodward (3), Ulisse Munari (4), Aneurin Evans (5), Vishal Joshi (1), Sergio Dallaporta (6), Kim L. Page (7) ( (1) Astronomy and Astrophysics Division, Physical Research Laboratory, Ahmedabad 380009, India, (2) Indian Institute of Technology, Gandhinagar, 382335, India, (3) Minnesota Institute for Astrophysics, University of Minnesota, 116 Church Street SE, Minneapolis, MN 55455, USA, (4) INAF Astronomical Observatory of Padova, 36012 Asiago (VI), Italy, (5) Astrophysics Group, Keele University, Keele, Staffordshire, ST5 5BG, UK, (6) ANS Collaboration, c/o Astronomical Observatory, 36012 Asiago (VI), Italy, (7) School of Physics and Astronomy, University of Leicester, Leicester LE1 7RH, UK)
Comments: Accepted for Publication in MNRAS
Subjects: Solar and Stellar Astrophysics (astro-ph.SR)
13. arXiv:2112.11974 [pdf, ps, other]
Title: The Gaia-ESO Survey: Target selection of open cluster stars
Comments: Accepted for publication on A&A. Abstract abridged from the accepted version
Subjects: Solar and Stellar Astrophysics (astro-ph.SR); Astrophysics of Galaxies (astro-ph.GA)
14. arXiv:2112.06584 [pdf, other]
Title: BEBOP III. Observations and an independent mass measurement of Kepler-16 (AB) b -- the first circumbinary planet detected with radial velocities
Comments: under review at MNRAS, 7 pages, 4 figures, all RV data in appendix
Subjects: Earth and Planetary Astrophysics (astro-ph.EP); Solar and Stellar Astrophysics (astro-ph.SR)
15. arXiv:2112.06076 [pdf, other]
Title: The curious case of Betelgeuse
Comments: Invited talk at the 16th Marcel Grossmann meeting
Subjects: Solar and Stellar Astrophysics (astro-ph.SR); History and Philosophy of Physics (physics.hist-ph)
16. arXiv:2112.05652 [pdf, other]
Title: BEBOP II: Sensitivity to sub-Saturn circumbinary planets using radial-velocities
Comments: 17 pages, 11 figures
Subjects: Earth and Planetary Astrophysics (astro-ph.EP); Instrumentation and Methods for Astrophysics (astro-ph.IM); Solar and Stellar Astrophysics (astro-ph.SR)
17. arXiv:2112.04541 [pdf, other]
Title: Families and Clusters of Diffuse Interstellar Bands: a Data-Driven Correlation Analysis
Comments: 16 pages after compiling, 9 figures
Subjects: Astrophysics of Galaxies (astro-ph.GA)
18. arXiv:2112.01309 [pdf]
Title: GJ 367b: A dense ultra-short period sub-Earth planet transiting a nearby red dwarf star
Comments: Note: "This is the author's version of the work. It is posted here by permission of the AAAS for personal use, not for redistribution. The definitive version was published in Science , (2021-12-03), doi: 10.1126/science.aay3253"
Subjects: Earth and Planetary Astrophysics (astro-ph.EP)
19. arXiv:2111.08828 [pdf, other]
Title: Analysis of Early Science observations with the CHaracterising ExOPlanets Satellite (CHEOPS) using pycheops
Comments: This is a pre-copyedited, author-produced PDF of an article accepted for publication in Monthly Notices of the Royal Astronomical Society following peer review
Subjects: Earth and Planetary Astrophysics (astro-ph.EP); Instrumentation and Methods for Astrophysics (astro-ph.IM); Solar and Stellar Astrophysics (astro-ph.SR)
20. arXiv:2111.05339 [pdf, other]
21. arXiv:2111.04545 [pdf, other]
Title: GASKAP Pilot Survey Science II: ASKAP Zoom Observations of Galactic 21-cm Absorption
Comments: 29 pages, 12 figures, submitted to Astrophysical Journal
Subjects: Astrophysics of Galaxies (astro-ph.GA)
22. arXiv:2110.13069 [pdf, other]
Title: The young HD 73583 (TOI-560) planetary system: Two 10-M$_\oplus$ mini-Neptunes transiting a 750-Myr-old, bright, and active K dwarf
Comments: Paper submitted to MNRAS, 23 pages, 15 figures
Subjects: Earth and Planetary Astrophysics (astro-ph.EP); Solar and Stellar Astrophysics (astro-ph.SR)
23. arXiv:2110.12562 [pdf, other]
Title: The Nearby Evolved Stars Survey II: Constructing a volume-limited sample and first results from the James Clerk Maxwell Telescope
Comments: 20 pages, 13 figures, 5 tables, accepted for publications in MNRAS
Subjects: Astrophysics of Galaxies (astro-ph.GA); Solar and Stellar Astrophysics (astro-ph.SR)
24. arXiv:2110.10477 [pdf, ps, other]
Title: The Gaia-ESO Survey: Membership probabilities for stars in 63 open and 7 globular clusters from 3D kinematics
Comments: Accepted version for publication in MNRAS. 16 pages + 38 pages of Appendices
Subjects: Solar and Stellar Astrophysics (astro-ph.SR); Astrophysics of Galaxies (astro-ph.GA)
25. arXiv:2110.03543 [pdf, other]
Title: Space-Based Photometry Of Binary Stars: From Voyager To TESS
Authors: John Southworth
Comments: Invited review article accepted for publication in the journal Universe, special issue "Variable Stars as Seen with Photometric Space Telescopes" (eds. L. Szabados and N. N. Samus). 3q pages plus 13 pages of references, one table, 12 colour figures
Subjects: Solar and Stellar Astrophysics (astro-ph.SR); Earth and Planetary Astrophysics (astro-ph.EP); Instrumentation and Methods for Astrophysics (astro-ph.IM)
26. arXiv:2110.03185 [pdf, ps, other]
Title: The Isaac Newton Telescope monitoring survey of Local Group dwarf galaxies. II. The star formation history of Andromeda I derived from long period variables
Comments: Accepted for publication in ApJ
Subjects: Astrophysics of Galaxies (astro-ph.GA)
27. arXiv:2110.02039 [pdf, other]
Title: Presence of red giant population in the foreground stellar sub-structure of the Small Magellanic Cloud
Comments: Accepted for publication in MNRAS, 11 pages, 6 figures
Subjects: Astrophysics of Galaxies (astro-ph.GA)
28. arXiv:2109.10196 [pdf, ps, other]
Title: Rediscussion of eclipsing binaries. Paper VII. Delta Scuti, gamma Doradus and tidally-perturbed pulsations in RR Lyncis
Authors: John Southworth
Comments: Accepted for publication in The Observatory. 16 pages, 6 black and white figures, 4 tables
Subjects: Solar and Stellar Astrophysics (astro-ph.SR)
29. arXiv:2109.09346 [pdf, other]
30. arXiv:2109.05394 [pdf, other]
Title: Anomalous Orbital Characteristics of the AQ Col (EC 05217-3914) System
Authors: T. Otani (1), A. E. Lynas-Gray (2 and 3, 4), D. Kilkenny (4), C. Koen (5), T. von Hippel (1), M. Uzundag (6), M. Vuckovic (6), C. M. Pennock (7), R. Silvotti (8) ((1) Department of Physical Sciences and SARA, Embry-Riddle Aeronautical University, (2) Department of Physics and Astronomy, University College London, (3) Department of Physics, University of Oxford, (4) Department of Physics and Astronomy, University of the Western Cape, (5) Department of Statistics, University of the Western Cape, (6) Instituto de Fisica y Astronomia, Universidad de Valparaiso, (7) Lennard-Jones Laboratories, Keele University, (8) INAF-Osservatorio Astrofisico di Torino)
Comments: accepted to ApJ. 26 pages, 10 figures
Subjects: Solar and Stellar Astrophysics (astro-ph.SR)
31. arXiv:2109.05031 [pdf, other]
Title: Spi-OPS: Spitzer and CHEOPS confirm the near-polar orbit of MASCARA-1 b and reveal a hint of dayside reflection
Comments: 26 pages, 16 figures. Accepted in A&A
Subjects: Earth and Planetary Astrophysics (astro-ph.EP); Instrumentation and Methods for Astrophysics (astro-ph.IM)
32. arXiv:2108.10529 [pdf, other]
Title: The VMC survey -- XLIV: Mapping metallicity trends in the Large Magellanic Cloud using near-infrared passbands
Comments: 13 pages, 15 figures, accepted for publication in the MNRAS
Subjects: Astrophysics of Galaxies (astro-ph.GA)
33. arXiv:2108.07225 [pdf, other]
Title: The VMC survey -- XLIII. The spatially resolved star formation history across the Large Magellanic Cloud
Authors: Alessandro Mazzi (1), Léo Girardi (2), Simone Zaggia (2), Giada Pastorelli (3), Stefano Rubele (2), Alessandro Bressan (4), Maria-Rosa L. Cioni (5), Gisella Clementini (6), Felice Cusano (6), João Pedro Rocha (7), Marco Gullieuszik (2), Leandro Kerber (7), Paola Marigo (1), Vincenzo Ripepi (8), Kenji Bekki (9), Cameron P.M. Bell (5), Richard de Grijs (10,11), Martin A. T. Groenewegen (12), Valentin D. Ivanov (13,14), Joana M. Oliveira (15), Ning-Chen Sun (16), Jacco Th. van Loon (15) ((1) Dipartimento di Fisica e Astronomia Galileo Galilei, Università di Padova, Vicolo dell'Osservatorio 3, I-35122 Padova, Italy, (2) INAF -- Osservatorio Astronomico di Padova, Vicolo dell'Osservatorio 5, I-35122 Padova, Italy, (3) STScI, 3700 San Martin Drive, Baltimore, MD 21218, USA, (4) SISSA, via Bonomea 365, I-34136 Trieste, Italy, (5) Leibniz-Institut für Astrophysik Potsdam, An der Sternwarte 16, D-14482 Potsdam, Germany, (6) INAF -- Osservatorio di Astrofisica e Scienza dello Spazio, Via Gobetti 93/3, I-40129 Bologna, Italy, (7) Universidade Estadual de Santa Cruz, Depto.\ de Ciências Exatas e Tecnológicas Rodovia Jorge Amado km 16, 45662-900, Ilhéus, Brazil, (8) INAF -- Osservatorio Astronomico di Capodimonte, Salita Moiariello 16, 80131, Naples, Italy, (9) ICRAR, M468, The University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, Australia, (10) Department of Physics and Astronomy, Macquarie University, Balaclava Road, Sydney, NSW 2109, Australia, (11) Research Centre for Astronomy, Astrophysics and Astrophotonics, Macquarie University, Balaclava Road, Sydney, NSW 2109, Australia, (12) Koninklijke Sterrenwacht van België, Ringlaan 3, 1180 Brussels, Belgium, (13) European Southern Observatory, Ave. Alonso de Córdova 3107, Vitacura, Santiago, Chile, (14) European Southern Observatory, Karl-Schwarzschild-Str.2, 85748 Garching bei München, Germany, (15) Lennard-Jones Laboratories, Keele University, ST5 5BG, UK, (16) Department of Physics and Astronomy, University of Sheffield, Hicks Building, Hounsfield Road, Sheffield S3 7RH, UK)
Comments: Accepted for publication in MNRAS
Subjects: Astrophysics of Galaxies (astro-ph.GA)
34. arXiv:2108.07105 [pdf]
Title: Massive young stellar objects in the Local Group irregular galaxy NGC6822 identified using machine learning
Comments: 20 pages, 16 figures. Accepted for publication in MNRAS
Subjects: Astrophysics of Galaxies (astro-ph.GA)
35. arXiv:2108.04101 [pdf, other]
Title: Spitzer Dayside Emission of WASP-34b
Comments: 12 pages, 6 figures. Accepted for publication at the Planetary Science Journal
Subjects: Earth and Planetary Astrophysics (astro-ph.EP)
36. arXiv:2108.02310 [pdf, other]
37. arXiv:2108.02294 [pdf, other]
38. arXiv:2108.02149 [pdf, ps, other]
Title: The changing face of AU Mic b: stellar spots, spin-orbit commensurability, and Transit Timing Variations as seen by CHEOPS and TESS
Comments: 16 pages, 11 figures, 7 tables; accepted by Astronomy and Astrophysics
Subjects: Earth and Planetary Astrophysics (astro-ph.EP); Solar and Stellar Astrophysics (astro-ph.SR)
39. arXiv:2107.14015 [pdf, other]
40. arXiv:2107.10967 [pdf, other]
41. arXiv:2107.05645 [pdf, other]
Title: Dust Production around Carbon-Rich Stars: The Role of Metallicity
Comments: 18 pages, 4 figures, Published in Universe
Subjects: Astrophysics of Galaxies (astro-ph.GA); Solar and Stellar Astrophysics (astro-ph.SR)
42. arXiv:2106.14808 [pdf, other]
Title: Transmission spectroscopy with VLT FORS2: a featureless spectrum for the low-density transiting exoplanet WASP-88b
Comments: 19 pages, 12 figures, 3 tables, Accepted for publication in MNRAS
Subjects: Earth and Planetary Astrophysics (astro-ph.EP)
43. arXiv:2106.14491 [pdf, other]
Title: Transit detection of the long-period volatile-rich super-Earth $ν^2$ Lupi d with $CHEOPS$
Comments: Published in Nature Astronomy. 60 pages, 18 Figures, 6 Tables. This is the authors' version of the manuscript. The final authenticated version is available online at this https URL
Journal-ref: Nature Astronomy, Volume 5, Pages 775-787, June 2021
Subjects: Earth and Planetary Astrophysics (astro-ph.EP)
44. arXiv:2106.12013 [pdf, other]
45. arXiv:2106.11614 [pdf, other]
Title: The Gaia-ESO Survey: Galactic evolution of lithium from iDR6
Comments: 17 pages, 10 figures, 3 tables (full tables 1 and 3 only available at the CDS), accepted for publication in Astronomy and Astrophysics. Version 2 includes corrections from language editor
Journal-ref: A&A 653, A72 (2021)
Subjects: Astrophysics of Galaxies (astro-ph.GA)
46. arXiv:2106.07443 [pdf, other]
47. arXiv:2106.07276 [pdf, ps, other]
Title: The EBLM project -- VIII. First results for M-dwarf mass, radius and effective temperature measurements using CHEOPS light curves
Comments: 12 pages, 8 figures, accepted for publication in MNRAS
Journal-ref: MNRAS 506 (2021) 306-322
Subjects: Solar and Stellar Astrophysics (astro-ph.SR); Earth and Planetary Astrophysics (astro-ph.EP)
48. arXiv:2106.04323 [pdf, ps, other]
Title: Rediscussion of eclipsing binaries. Paper VI. The F-type system V505 Persei
Authors: John Southworth
Comments: Accepted for publication in The Observatory. 13 pages, 3 black and white figures, 5 tables
Subjects: Solar and Stellar Astrophysics (astro-ph.SR)
49. arXiv:2106.04322 [pdf, ps, other]
Title: Rediscussion of eclipsing binaries. Paper V. The triple system V455 Aurigae
Authors: John Southworth
Comments: Accepted for publication in The Observatory. 15 pages, 6 black and white figures, 3 tables
Subjects: Solar and Stellar Astrophysics (astro-ph.SR)
50. arXiv:2105.13274 [pdf, ps, other]
51. arXiv:2105.12586 [pdf, other]
Title: TIC 454140642: A Compact, Coplanar, Quadruple-lined Quadruple Star System Consisting of Two Eclipsing Binaries
Comments: 25 pages, 17 figures, 9 tables; accepted for publication in the Astrophysical Journal
Subjects: Solar and Stellar Astrophysics (astro-ph.SR)
52. arXiv:2105.08614 [pdf, other]
53. arXiv:2105.06522 [pdf, other]
Title: Ground-Based Transmission Spectroscopy with VLT FORS2: Evidence for faculae and clouds in the optical spectrum of the warm Saturn WASP-110b
Comments: Accepted for publication in The Astronomical Journal
Subjects: Earth and Planetary Astrophysics (astro-ph.EP); Solar and Stellar Astrophysics (astro-ph.SR)
54. arXiv:2105.05826 [pdf, other]
55. arXiv:2105.04866 [pdf, other]
Title: The Gaia-ESO survey: Mixing processes in low-mass stars traced by lithium abundance in cluster and field stars
Comments: Accepted for publication in A&A, 19 pages, 16 figures
Journal-ref: A&A 651, A84 (2021)
Subjects: Solar and Stellar Astrophysics (astro-ph.SR); Astrophysics of Galaxies (astro-ph.GA)
56. arXiv:2105.01153 [pdf, other]
Title: The Gaia-ESO survey: A lithium depletion boundary age for NGC 2232
Subjects: Solar and Stellar Astrophysics (astro-ph.SR); Astrophysics of Galaxies (astro-ph.GA)
57. arXiv:2105.00889 [pdf, ps, other]
Title: The ultra-hot-Jupiter KELT-16 b: Dynamical Evolution and Atmospheric Properties
Comments: 17 pages, 16 figures, Accepted for publication in Monthly Notices of the Royal Astronomical Society
Subjects: Earth and Planetary Astrophysics (astro-ph.EP)
58. arXiv:2104.14782 [pdf, other]
59. arXiv:2104.10462 [pdf, other]
Title: A transit survey to search for planets around hot subdwarfs: I. methods and performance tests on light curves from Kepler, K2, TESS, and CHEOPS
Comments: 22 pages, 7 figures, accepted to A&A
Journal-ref: A&A 650, A205 (2021)
Subjects: Earth and Planetary Astrophysics (astro-ph.EP); Solar and Stellar Astrophysics (astro-ph.SR)
60. arXiv:2104.09279 [pdf, other]
Title: KIC5950759: a high-amplitude $δ$ Sct star with amplitude and frequency modulation near the terminal age main sequence
Comments: 15 pages, accepted for publication in MNRAS
Subjects: Solar and Stellar Astrophysics (astro-ph.SR)
61. arXiv:2104.08054 [pdf, other]
Title: Stellar substructures in the periphery of the Magellanic Clouds with the VISTA Hemisphere Survey from the red clump and other tracers
Comments: 20 pages, 19 figures, accepted for publication in MNRAS
Subjects: Astrophysics of Galaxies (astro-ph.GA)
62. arXiv:2104.02157 [pdf, ps, other]
63. arXiv:2104.01970 [pdf, other]
64. arXiv:2103.15492 [pdf, other]
Title: The VMC Survey -- XLII. Near-infrared period-luminosity relations for RR Lyrae stars and the structure of the Large Magellanic Cloud
Comments: accepted for publication in MNRAS
Subjects: Astrophysics of Galaxies (astro-ph.GA)
65. arXiv:2103.04950 [pdf]
66. arXiv:2103.03644 [pdf, ps, other]
Title: Rediscussion of eclipsing binaries. Paper IV. The evolved G-type system AN Camelopardalis
Authors: John Southworth
Comments: Accepted for publication in The Observatory. 14 pages, 5 black and white figures, 4 tables
Subjects: Solar and Stellar Astrophysics (astro-ph.SR)
67. arXiv:2103.02077 [pdf, other]
Title: The surface brightness - colour relations based on eclipsing binary stars and calibrated with Gaia EDR3
Comments: Accepted for publication in Astronomy & Astrophysics, 17 pages
Journal-ref: A&A 649, A109 (2021)
Subjects: Solar and Stellar Astrophysics (astro-ph.SR)
68. arXiv:2103.00925 [pdf, other]
Title: BG Ind: the nearest doubly eclipsing, compact hierarchical quadruple system
Comments: 17 pages. Accepted for publication in MNRAS
Subjects: Solar and Stellar Astrophysics (astro-ph.SR)
69. arXiv:2102.06049 [pdf, other]
Title: TESS Hunt for Young and Maturing Exoplanets (THYME) IV: Three small planets orbiting a 120 Myr-old star in the Pisces--Eridanus stream
Comments: 20 pages, appendix on UV excess
Journal-ref: The Astronomical Journal, 2021, Volume 161, Issue 2
Subjects: Earth and Planetary Astrophysics (astro-ph.EP); Solar and Stellar Astrophysics (astro-ph.SR)
70. arXiv:2102.03027 [pdf, other]
Title: The nature of the eccentric doubled-lined eclipsing binary system KIC 2306740 with Kepler space photometry
Comments: 9 pages, 6 figures, 7 tables. Accepted for publication in ApJ
Subjects: Solar and Stellar Astrophysics (astro-ph.SR)
71. arXiv:2102.01720 [pdf, other]
Title: A tidally tilted sectoral dipole pulsation mode in the eclipsing binary TIC 63328020
Comments: 16 pages, 12 figures, and 8 tables
Subjects: Solar and Stellar Astrophysics (astro-ph.SR)