The DOI matches its Crossref record; 44 of the 44 references it cites were found in a registry or an index.
SOAP 2.0: A TOOL TO ESTIMATE THE PHOTOMETRIC AND RADIAL VELOCITY VARIATIONS INDUCED BY STELLAR SPOTS AND PLAGES
Open accessAbstract
This paper presents SOAP 2.0, a new version of the Spot Oscillation And Planet (SOAP) code that estimates in a simple way the photometric and radial velocity (RV) variations induced by active regions. The inhibition of the convective blueshift (CB) inside active regions is considered, as well as the limb brightening effect of plages, a quadratic limb darkening law, and a realistic spot and plage contrast ratio. SOAP 2.0 shows that the activity-induced variation of plages is dominated by the inhibition of the CB effect. For spots, this effect becomes significant only for slow rotators. In addition, in the case of a major active region dominating the activity-induced signal, the ratio between the FWHM and the RV peak-to-peak amplitudes of the cross correlation function can be used to infer the type of active region responsible for the signal for stars with v sin i ⩽8 km s −1 . A ratio smaller than three implies a spot, while a larger ratio implies a plage. Using the observation of HD 189733, we show that SOAP 2.0 manages to reproduce the activity variation as well as previous simulations when a spot is dominating the activity-induced variation. In addition, SOAP 2.0 also reproduces the activity variation induced by a plage on the slowly rotating star α Cen B, which is not possible using previous simulations. Following these results, SOAP 2.0 can be used to estimate the signal induced by spots and plages, but also to correct for it when a major active region is dominating the RV variation.
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Citations
Cites
Analytic Light Curves for Planetary Transit Searches
Mandel, K., & Agol, E. (2002) · The Astrophysical Journal · doi:10.1086/345520 · Cited by 2,256
ELODIE: A spectrograph for accurate radial velocity measurements
Baranne, A., Queloz, D., Mayor, M., Adrianzyk, G., Knispel, G., Kohler, D., Lacroix, D., Meunier, J.-P., Rimbaud, G., & Vin, A. (1996) · Astronomy and Astrophysics Supplement Series · doi:10.1051/aas:1996251 · Cited by 1,325
Claret, A., & Bloemen, S. (2011) · Astronomy & Astrophysics · doi:10.1051/0004-6361/201116451 · Cited by 1,155
Queloz, D., Henry, G. W., Sivan, J. P., Baliunas, S. L., Beuzit, J. L., Donahue, R. A., Mayor, M., Naef, D., Perrier, C., & Udry, S. (2001) · Astronomy and Astrophysics · doi:10.1051/0004-6361:20011308 · Cited by 913 · cited 2×
“These correlations are often a powerful diagnostic to decide if the observed RV signal is of activity or planetary origin (e.g. Boisse et al. 2009; Bonfils et al. 2007; Queloz et al. 2001).”
BackgroundPepe, F., Mayor, M., Galland, F., Naef, D., Queloz, D., Santos, N. C., Udry, S., & Burnet, M. (2002) · Astronomy & Astrophysics · doi:10.1051/0004-6361:20020433 · Cited by 653
Self-citationActivity‐Related Radial Velocity Variation in Cool Stars
Saar, S. H., & Donahue, R. A. (1997) · The Astrophysical Journal · doi:10.1086/304392 · Cited by 504
The prevalence of dust on the exoplanet HD 189733b from Hubble and Spitzer observations
Pont, F., Sing, D. K., Gibson, N. P., Aigrain, S., Henry, G., & Husnoo, N. (2013) · Monthly Notices of the Royal Astronomical Society · doi:10.1093/mnras/stt651 · Cited by 432
An Earth-mass planet orbiting α Centauri B
Dumusque, X., Pepe, F., Lovis, C., Ségransan, D., Sahlmann, J., Benz, W., Bouchy, F., Mayor, M., Queloz, D., Santos, N., et al. (2012) · Nature · doi:10.1038/nature11572 · Cited by 404 · cited 4×
“Nevertheless, a few RV observations of slow rotators during their high-activity phase exist, and the best RV measurements to study stellar activity are probably the ones used to detect the closest planet to our Solar System orbiting α Cen B (Dumusque et al. 2012).”
BackgroundInfluentialSelf-citationDisentangling between stellar activity and planetary signals
Boisse, I., Bouchy, F., Hébrard, G., Bonfils, X., Santos, N., & Vauclair, S. (2011) · Astronomy & Astrophysics · doi:10.1051/0004-6361/201014354 · Cited by 333
Self-citationA simple method to estimate radial velocity variations due to stellar activity using photometry
Aigrain, S., Pont, F., & Zucker, S. (2012) · Monthly Notices of the Royal Astronomical Society · doi:10.1111/j.1365-2966.2011.19960.x · Cited by 309
Cited by
State of the Field: Extreme Precision Radial Velocities
Fischer, D. A., Anglada-Escude, G., Arriagada, P., Baluev, R. V., Bean, J. L., Bouchy, F., Buchhave, L. A., Carroll, T., Chakraborty, A., Crepp, J. R., et al. (2016) · Publications of the Astronomical Society of the Pacific · doi:10.1088/1538-3873/128/964/066001 · Cited by 367
Self-citationPerryman, M. (2018) · Cambridge University Press eBooks · doi:10.1017/9781108304160 · Cited by 340
Metadata
- Authors
- Dumusque, X., Boisse, I., & Santos, N. C.
- Venue
- The Astrophysical Journal
- Publisher
- American Astronomical Society
- Published
- 2014-11-14
- Volume
- 796
- Issue
- 2
- Pages
- 132
- ISSN
- 0004-637X (ISSN-L)
- 1538-4357
- OpenAlex
- W2044874733
- Cited by
- 276
- References
- 44
- FWCI
- 12.19
- Type
- journal article
- Language
- en
- Open access
- bronze
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- CoChat. (2026). Citation check: SOAP 2.0: A TOOL TO ESTIMATE THE PHOTOMETRIC AND RADIAL VELOCITY VARIATIONS INDUCED BY STELLAR SPOTS AND PLAGES. https://app.cochat.ai/papers/10.1088/0004-637x/796/2/132
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- Dumusque, X., Boisse, I., & Santos, N. C. (2014). SOAP 2.0: A TOOL TO ESTIMATE THE PHOTOMETRIC AND RADIAL VELOCITY VARIATIONS INDUCED BY STELLAR SPOTS AND PLAGES. The Astrophysical Journal. https://doi.org/10.1088/0004-637x/796/2/132
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