Zobrazeno 1 - 10
of 1 579
pro vyhledávání: '"Bedell, M"'
Autor:
Bonfanti, A., Gandolfi, D., Egger, J. A., Fossati, L., Cabrera, J., Krenn, A., Alibert, Y., Benz, W., Billot, N., Florén, H. -G., Lendl, M., Adibekyan, V., Salmon, S., Santos, N. C., Sousa, S. G., Wilson, T. G., Barragán, O., Cameron, A. Collier, Delrez, L., Esposito, M., Goffo, E., Osborne, H., Osborn, H. P., Serrano, L. M., Van Eylen, V., Alarcon, J., Alonso, R., Anglada, G., Bárczy, T., Navascues, D. Barrado, Barros, S. C. C., Baumjohann, W., Beck, M., Beck, T., Bedell, M., Bonfils, X., Borsato, L., Brandeker, A., Broeg, C., Charnoz, S., Van Damme, C. Corral, Csizmadia, Sz., Cubillos, P. E., Davies, M. B., Deleuil, M., Demangeon, O. D. S., Demory, B. -O., Ehrenreich, D., Erikson, A., Fortier, A., Fridlund, M., Gillon, M., Güdel, M., Hoyer, S., Isaak, K. G., Kerschbaum, F., Kiss, L. L., Laskar, J., Etangs, A. Lecavelier des, Lorenzo-Oliveira, D., Lovis, C., Magrin, D., Marafatto, L., Maxted, P. F. L., Meléndez, J., Mordasini, C., Nascimbeni, V., Olofsson, G., Ottensamer, R., Pagano, I., Pallé, E., Peter, G., Piazza, D., Piotto, G., Pollacco, D., Queloz, D., Ragazzoni, R., Rando, N., Rauer, H., Ribas, I., Scandariato, G., Ségransan, D., Simon, A. E., Smith, A. M. S., Steller, M., Szabó, Gy. M., Thomas, N., Udry, S., Ulmer, B., Van Grootel, V., Venturini, J., Walton, N. A.
Publikováno v:
A&A 671, L8 (2023)
TOI-1055 is a Sun-like star known to host a transiting Neptune-sized planet on a 17.5-day orbit (TOI-1055 b). Radial velocity (RV) analyses carried out by two independent groups using nearly the same set of HARPS spectra have provided measurements of
Externí odkaz:
http://arxiv.org/abs/2302.10664
Excalibur: A Non-Parametric, Hierarchical Wavelength-Calibration Method for a Precision Spectrograph
Excalibur is a non-parametric, hierarchical framework for precision wavelength-calibration of spectrographs. It is designed with the needs of extreme-precision radial velocity (EPRV) in mind, which require that instruments be calibrated or stabilized
Externí odkaz:
http://arxiv.org/abs/2010.13786
Autor:
Vedantham, H. K., Callingham, J. R., Shimwell, T. W., Tasse, C., Pope, B. J. S., Bedell, M., Snellen, I., Best, P., Hardcastle, M. J., Haverkorn, M., Mechev, A., O'Sullivan, S. P., Röttgering, H. J. A., White, G. J.
Low frequency ($\nu\lesssim 150\,$MHz) stellar radio emission is expected to originate in the outer corona at heights comparable to and larger than the stellar radius. Such emission from the Sun has been used to study coronal structure, mass ejection
Externí odkaz:
http://arxiv.org/abs/2002.08727
Autor:
Carlos, M., Melendez, J., Spina, L., Santos, L. A. dos, Bedell, M., Ramirez, I., Asplund, M., Bean, J. L., Yong, D., Galarza, J. Yana, Alves-Brito, A.
The present work aims to examine in detail the depletion of lithium in solar twins to better constrain stellar evolution models and investigate its possible connection with exoplanets. We employ spectral synthesis in the region of the asymmetric 6707
Externí odkaz:
http://arxiv.org/abs/1903.02735
Publikováno v:
A&A 590, A32 (2016)
Solar twins are stars with similar stellar (surface) parameters to the Sun that can have a wide range of ages. This provide an opportunity to analyze the variation of their chemical abundances with age. Nissen (2015) recently suggested that the abund
Externí odkaz:
http://arxiv.org/abs/1604.05733
Autor:
Bedell M; Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA., Price T; Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA., Wang Q; Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA., Rea B; Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.
Publikováno v:
Fetal and pediatric pathology [Fetal Pediatr Pathol] 2024 Nov 23, pp. 1-3. Date of Electronic Publication: 2024 Nov 23.
Autor:
Bedell M; Department of Pathology, University of Pittsburgh Medical Center (UPMC), Shadyside Hospital, 5230 Centre Avenue, WG02.6, Pittsburgh, PA, 15232, USA., Naous R; Department of Pathology, University of Pittsburgh Medical Center (UPMC), Shadyside Hospital, 5230 Centre Avenue, WG02.6, Pittsburgh, PA, 15232, USA. naousr@upmc.edu.
Publikováno v:
Virchows Archiv : an international journal of pathology [Virchows Arch] 2024 Nov 12. Date of Electronic Publication: 2024 Nov 12.
Autor:
Bedell, M., Melendez, J., Bean, J. L., Ramirez, I., Asplund, M., Alves-Brito, A., Casagrande, L., Dreizler, S., Monroe, T., Spina, L., Maia, M. Tucci
Publikováno v:
A&A 581, A34 (2015)
Through our HARPS radial velocity survey for planets around solar twin stars, we have identified a promising Jupiter twin candidate around the star HIP11915. We characterize this Keplerian signal and investigate its potential origins in stellar activ
Externí odkaz:
http://arxiv.org/abs/1507.03998
The achievable level of precision on photospheric abundances of stars is a major limiting factor on investigations of exoplanet host star characteristics, the chemical histories of star clusters, and the evolution of the Milky Way and other galaxies.
Externí odkaz:
http://arxiv.org/abs/1409.1230
Autor:
Ramirez, I., Melendez, J., Bean, J., Asplund, M., Bedell, M., Monroe, T., Casagrande, L., Schirbel, L., Dreizler, S., Teske, J., Maia, M. Tucci, Alves-Brito, A., Baumann, P.
Publikováno v:
A&A 572, A48 (2014)
We are carrying out a search for planets around a sample of solar twin stars using the HARPS spectrograph. The goal of this project is to exploit the advantage offered by solar twins to obtain chemical abundances of unmatched precision. This survey w
Externí odkaz:
http://arxiv.org/abs/1408.4130