Jitter Across 15 yr: Leveraging Precise Photometry from Kepler and TESS to Extract Exoplanets from Radial Velocity Time Series

被引：0

作者：

Beard, Corey ^{[1
]}

Robertson, Paul ^{[1
]}

Lubin, Jack ^{[2
]}

Han, Te ^{[1
]}

Holcomb, Rae ^{[1
]}

Premnath, Pranav ^{[1
]}

Butler, R. Paul ^{[3
]}

Dalba, Paul A. ^{[4
,5
]}

Holden, Brad ^{[6
]}

Blake, Cullen H. ^{[7
]}

Diddams, Scott A. ^{[8
]}

Gupta, Arvind F. ^{[9
]}

Halverson, Samuel ^{[10
]}

Krolikowski, Daniel M. ^{[11
]}

Li, Dan ^{[9
]}

Lin, Andrea S. J. ^{[12
]}

Logsdon, Sarah E. ^{[9
]}

Lubar, Emily ^{[14
]}

Mahadevan, Suvrath ^{[12
,13
]}

Mcelwain, Michael W.

Ninan, Joe P. ^{[15
]}

Paredes, Leonardo A. ^{[11
]}

Roy, Arpita ^{[16
]}

Schwab, Christian ^{[17
]}

Stefansson, Gudmundur ^{[18
]}

Terrien, Ryan C. ^{[19
]}

Wright, Jason T. ^{[12
,13
,20
]}

机构：

[1] Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA

[2] Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA

[3] Carnegie Inst Sci, Earth & Planets Lab, Washington, DC 20015 USA

[4] Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA

[5] Carl Sagan Ctr, SETI Inst, 339 Bernardo Ave,Suite 200, Mountain View, CA 94043 USA

[6] Univ Calif Observ, 1156 High St, Santa Cruz, CA 95064 USA

[7] Univ Penn, Dept Phys & Astron, 209 S 33rd St, Philadelphia, PA 19104 USA

[8] Univ Colorado, Dept Phys, 390 UCB, Boulder, CO 80309 USA

[9] NSF Natl Opt Infrared Astron Res Lab, 950 N Cherry Ave, Tucson, AZ 85719 USA

[10] CALTECH, Jet Prop Lab, 4800 Oak Grove Dr, Pasadena, CA 91109 USA

[11] Univ Arizona, Steward Observ, 933 N Cherry Ave, Tucson, AZ 85721 USA

[12] Penn State, Dept Astron & Astrophys, 525 Davey Lab, University Pk, PA 16802 USA

[13] Penn State, Ctr Exoplanets & Habitable Worlds, 525 Davey Lab, University Pk, PA 16802 USA

[14] Aerosp Corp, 200 N Aviat Blvd, El Segundo, CA 90245 USA

[15] Tata Inst Fundamental Res, Dept Astron & Astrophys, Homi Bhabha Rd, Mumbai 400005, India

[16] Schmidt Sci, Astrophys & Space Inst, New York, NY 10011 USA

[17] Macquarie Univ, Sch Math & Phys Sci, Balaclava Rd, N Ryde, NSW 2109, Australia

[18] Univ Amsterdam, Anton Pannekoek Inst Astron, 904 Sci Pk, NL-1098 XH Amsterdam, Netherlands

[19] Carleton Coll, One North Coll St, Northfield, MN 55057 USA

[20] Penn State, Penn State Extraterr Intelligence Ctr, 525 Davey Lab, University Pk, PA 16802 USA

来源：

ASTRONOMICAL JOURNAL | 2025年 / 169卷 / 02期

关键词：

MAIN-SEQUENCE STARS; MAGNETIC ACTIVITY; MASS MEASUREMENTS; ROTATION PERIODS; HABITABLE ZONES; PLANET; ASTROPY; I; CAPABILITIES; NEPTUNES;

D O I：

10.3847/1538-3881/ad9eb0

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Stellar activity contamination of radial velocity (RV) data is one of the top challenges plaguing the field of extreme-precision RV science. Previous work has shown that photometry can be very effective at removing such signals from RV data, especially stellar activity caused by rotating starspots and plage. The exact utility of photometry for removing RV activity contamination, and the best way to apply it, is not well known. We present a combination photometric and RV study of eight Kepler/K2 FGK stars with known stellar variability. We use NEID RVs acquired simultaneously with Transiting Exoplanet Survey Satellite (TESS) photometry, and we perform injection-recovery tests to quantify the efficacy of recent TESS photometry versus archival Kepler/K2 photometry for removing stellar variability from RVs. We additionally experiment with different TESS sectors when training our models in order to quantify the real benefit of simultaneously acquired RVs and photometry. We conclude that Kepler photometry typically performs better than TESS at removing noise from RV data when it is available, likely due to longer baseline and precision. In contrast, for targets with available K2 photometry, especially those most active, and with high-precision (sigma NEID < 1 m s(-1)) NEID RVs, TESS may be the more informative dataset. However, contrary to expectations, we have found that training on simultaneous photometry does not always achieve the best results.

引用

页数：23

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