Search Results - "Langellier, N."

Three years of Sun-as-a-star radial-velocity observations on the approach to solar minimum by Collier Cameron, A, Mortier, A, Phillips, D, Dumusque, X, Haywood, R D, Langellier, N, Watson, C A, Cegla, H M, Costes, J, Charbonneau, D, Coffinet, A, Latham, D W, Lopez-Morales, M, Malavolta, L, Maldonado, J, Micela, G, Milbourne, T, Molinari, E, Saar, S H, Thompson, S, Buchschacher, N, Cecconi, M, Cosentino, R, Ghedina, A, Glenday, A, Gonzalez, M, Li, C-H, Lodi, M, Lovis, C, Pepe, F, Poretti, E, Rice, K, Sasselov, D, Sozzetti, A, Szentgyorgyi, A, Udry, S, Walsworth, R

“…Abstract The time-variable velocity fields of solar-type stars limit the precision of radial-velocity determinations of their planets’ masses, obstructing…”
Get full text

HARPS-N Solar RVs Are Dominated by Large, Bright Magnetic Regions by Milbourne, T. W., Haywood, R. D., Phillips, D. F., Saar, S. H., Cegla, H. M., Cameron, A. C., Costes, J., Dumusque, X., Langellier, N., Latham, D. W., Maldonado, J., Malavolta, L., Mortier, A., III, M. L. Palumbo, Thompson, S., Watson, C. A., Bouchy, F., Buchschacher, N., Cecconi, M., Charbonneau, D., Cosentino, R., Ghedina, A., Glenday, A. G., Gonzalez, M., Li, C-H., Lodi, M., López-Morales, M., Lovis, C., Mayor, M., Micela, G., Molinari, E., Pepe, F., Piotto, G., Rice, K., Sasselov, D., Ségransan, D., Sozzetti, A., Szentgyorgyi, A., Udry, S., Walsworth, R. L.

“…State-of-the-art radial-velocity (RV) exoplanet searches are currently limited by RV signals arising from stellar magnetic activity. We analyze solar…”
Get full text

Testing the Spectroscopic Extraction of Suppression of Convective Blueshift by Miklos, M., Milbourne, T. W., Haywood, R. D., Phillips, D. F., Saar, S. H., Meunier, N., Cegla, H. M., Dumusque, X., Langellier, N., Maldonado, J., Malavolta, L., Mortier, A., Thompson, S., Watson, C. A., Cecconi, M., Cosentino, R., Ghedina, A., Li, C-H., López-Morales, M., Molinari, E., Poretti, Ennio, Sasselov, D., Sozzetti, A., Walsworth, R. L.

“…Efforts to detect low-mass exoplanets using stellar radial velocities (RVs) are currently limited by magnetic photospheric activity. Suppression of convective…”
Get full text

Estimating Magnetic Filling Factors from Simultaneous Spectroscopy and Photometry: Disentangling Spots, Plage, and Network by Milbourne, T. W., Phillips, D. F., Langellier, N., Mortier, A., Haywood, R. D., Saar, S. H., Cegla, H. M., Collier Cameron, A., Dumusque, X., Latham, D. W., Malavolta, L., Maldonado, J., Thompson, S., Vanderburg, A., Watson, C. A., Buchhave, L. A., Cecconi, M., Cosentino, R., Ghedina, A., Gonzalez, M., Lodi, M., López-Morales, M., Sozzetti, A., Walsworth, R. L.

“…Abstract State-of-the-art radial velocity (RV) exoplanet searches are limited by the effects of stellar magnetic activity. Magnetically active spots, plage,…”
Get full text

Spectrally flat, broadband visible-wavelength astro-comb by Guoqing Chang, Chih-Hao Li, Glenday, A., Furesz, G., Langellier, N., Li-Jin Chen, Webber, M. W., Jinkang Lim, Hung-Wen Chen, Phillips, D. F., Szentgyorgyi, A., Walsworth, R. L., Kartner, F. X.

“…We demonstrate a broadband visible-wavelength astro-comb enabled by two key technologies: dispersion-managed, fiber-optic Cherenkov radiation for green-to-red…”
Get full text

Estimating Magnetic Filling Factors From Simultaneous Spectroscopy and Photometry: Disentangling Spots, Plage, and Network by Milbourne, T. W, Phillips, D. F, Langellier, N, Mortier, A, Haywood, R. D, Saar, S. H, Cegla, H. M, Cameron, A. Collier, Dumusque, X, Latham, D. W, Malavolta, L, Maldonado, J, Thompson, S, Vanderburg, A, Watson, C. A, Buchhave, L. A, Cecconi, M, Cosentino, R, Ghedina, A, Gonzalez, M, Lodi, M, López-Morales, M, Sozzetti, A, Walsworth, R. L

“…The Astrophysical Journal, Volume 920, Number 1, 2021 State of the art radial velocity (RV) exoplanet searches are limited by the effects of stellar magnetic…”
Get full text

Detection Limits of Low-mass, Long-period Exoplanets Using Gaussian Processes Applied to HARPS-N Solar RVs by Langellier, N, Milbourne, T. W, Phillips, D. F, Haywood, R. D, Saar, S. H, Mortier, A, Malavolta, L, Thompson, S, Cameron, A. Collier, Dumusque, X, Cegla, H. M, Latham, D. W, Maldonado, J, Watson, C. A, Buchschacher, N, Cecconi, M, Charbonneau, D, Cosentino, R, Ghedina, A, Gonzalez, M, Li, C-H, Lodi, M, López-Morales, M, Micela, G, Molinari, E, Pepe, F, Poretti, E, Rice, K, Sasselov, D, Sozzetti, A, Udry, S, Walsworth, R. L

“…AJ 161 287 (2021) Radial velocity (RV) searches for Earth-mass exoplanets in the habitable zone around Sun-like stars are limited by the effects of stellar…”
Get full text

Testing the Spectroscopic Extraction of Suppression of Convective Blueshift by Miklos, M, Milbourne, T. W, Haywood, R. D, Phillips, D. F, Saar, S. H, Meunier, N, Cegla, H. M, Dumusque, X, Langellier, N, Maldonado, J, Malavolta, L, Mortier, A, Thompson, S, Watson, C. A, Cecconi, M, Cosentino, R, Ghedina, A, Li, C-H, López-Morales, M, Molinari, E, Poretti, E, Sasselov, D, Sozzetti, A, Walsworth, R. L

“…The Astrophysical Journal, 888:117(6pp), 2020 Efforts to detect low-mass exoplanets using stellar radial velocities (RVs) are currently limited by magnetic…”
Get full text

Three years of Sun-as-a-star radial-velocity observations on the approach to solar minimum by Cameron, A. Collier, Mortier, A, Phillips, D, Dumusque, X, Haywood, R. D, Langellier, N, Watson, C. A, Cegla, H. M, Costes, J, Charbonneau, D, Coffinet, A, Latham, D. W, Lopez-Morales, M, Malavolta, L, Maldonado, J, Micela, G, Milbourne, T, Molinari, E, Saar, S. H, Thompson, S, Buchschacher, N, Cecconi, M, Cosentino, R, Ghedina, A, Glenday, A, Li, M. Gonzalez C. -H, Lodi, M, Lovis, C, Pepe, F, Poretti, E, Rice, K, Sasselov, D, Sozzetti, A, Szentgyorgyi, A, Udry, S, Walsworth, R

“…The time-variable velocity fields of solar-type stars limit the precision of radial-velocity determinations of their planets' masses, obstructing detection of…”
Get full text

HARPS-N Solar Radial-Velocity Variations Are Dominated By Large, Bright Magnetic Regions by Milbourne, T. W, Haywood, R. D, Phillips, D. F, Saar, S. H, Cegla, H. M, Cameron, A. C, Costes, J, Dumusque, X, Langellier, N, Latham, D. W, Maldonado, J, Malavolta, L, Mortier, A, PalumboIii, M. L, Thompson, S, Watson, C. A, Bouchy, F, Buchschacher, N, Cecconi, M, Charbonneau, D, Cosentino, R, Ghedina, A, Glenday, A. G, Gonzalez, M, Li, C-H, Lodi, M, López-Morales, M, Lovis, C, Mayor, M, Micela, G, Molinari, E, Pepe, F, Piotto, G, Rice, K, Sasselov, D, Ségransan, D, Sozzetti, A, Szentgyorgyi, A, Udry, S, Walsworth, R. L

“…State of the art radial-velocity (RV) exoplanet searches are currently limited by RV signals arising from stellar magnetic activity. We analyze solar…”
Get full text