相关论文: The CARMENES search for exoplanets around M dwarfs…

The CARMENES search for exoplanets around M dwarfs: Radial-velocity variations of active stars in visual-channel spectra

Previous simulations predicted the activity-induced radial-velocity (RV) variations of M dwarfs to range from $\sim1$ cm/s to $\sim1$ km/s, depending on various stellar and activity parameters. We investigate the observed relations between…

太阳与恒星天体物理 · 物理学 2018-06-27 L. Tal-Or , M. Zechmeister , A. Reiners , S. V. Jeffers , P. Schöfer , A. Quirrenbach , P. J. Amado , I. Ribas , J. A. Caballero , J. Aceituno , F. F. Bauer , V. J. S. Béjar , S. Czesla , S. Dreizler , B. Fuhrmeister , A. P. Hatzes , E. N. Johnson , M. Kürster , M. Lafarga , D. Montes , J. C. Morales , S. Reffert , S. Sadegi , W. Seifert , D. Shulyak

The CARMENES search for exoplanets around M dwarfs. Line-by-line sensitivity to activity in M dwarfs

Radial velocities (RVs) measured from high-resolution stellar spectra are routinely used to detect and characterise orbiting exoplanet companions. The different lines present in stellar spectra are created by several species, which are…

太阳与恒星天体物理 · 物理学 2023-06-07 M. Lafarga , I. Ribas , M. Zechmeister , A. Reiners , Á. López-Gallifa , D. Montes , A. Quirrenbach , P. J. Amado , J. A. Caballero , M. Azzaro , V. J. S. Béjar , A. P. Hatzes , Th. Henning , S. V. Jeffers , A. Kaminski , M. Kürster , P. Schöfer , A. Schweitzer , H. M. Tabernero , M. R. Zapatero Osorio

The CARMENES search for exoplanets around M dwarfs: Benchmarking the impact of activity in high-precision radial velocity measurements

Current exoplanet surveys using the radial velocity (RV) technique are targeting M dwarfs because any habitable zone terrestrial-mass planets will induce a high RV and orbit on shorter periods than for more massive stars. One of the main…

地球与行星天体物理 · 物理学 2022-07-13 S. V. Jeffers , J. R. Barnes , P. Scheofer , A. Quirrenbach , M. Zechmeister , P. J. Amado , J. A. Caballero , M. Fernandez , E. Rodriguez , I. Ribas , A. Reiners , C. Cardona Guillen , C. Cifuentes , S. Czesla , A. P. Hatzes , M. Kurster , D. Montes , J. C. Morales , S. Pedraz , S. Sadegi

The CARMENES search for exoplanets around M dwarfs. Rotational variation in activity indicators of Ross 318, YZ CMi, TYC 3529-1437-1, and EV Lac

The CARMENES instrument is searching for periodic radial-velocity (RV) variations of M dwarfs, which are induced by orbiting planets. However, there are other potential sources of such variations, including rotational modulation caused by…

太阳与恒星天体物理 · 物理学 2022-07-20 P. Schöfer , S. V. Jeffers , A. Reiners , M. Zechmeister , B. Fuhrmeister , M. Lafarga , I. Ribas , A. Quirrenbach , P. J. Amado , J. A. Caballero , G. Anglada-Escudé , F. F. Bauer , V. J. S. Béjar , M. Cortés-Contreras , E. Díez Alonso , S. Dreizler , E. W. Guenther , O. Herbort , E. N. Johnson , A. Kaminski , M. Kürster , D. Montes , J. C. Morales , S. Pedraz , L. Tal-Or

The CARMENES search for exoplanets around M dwarfs. Radial velocities and activity indicators from cross-correlation functions with weighted binary masks

For years, the standard procedure to measure radial velocities (RVs) of spectral observations consisted in cross-correlating the spectra with a binary mask, that is, a simple stellar template that contains information on the position and…

天体物理仪器与方法 · 物理学 2020-04-15 M. Lafarga , I. Ribas , C. Lovis , M. Perger , M. Zechmeister , F. F. Bauer , M. Kürster , M. Cortés-Contreras , J. C. Morales , E. Herrero , A. Rosich , D. Baroch , A. Reiners , J. A. Caballer , A. Quirrenbach , P. J. Amado , J. M. Alacid , V. J. S. Béjar , S. Dreizler , A. P. Hatzes , T. Henning , S. V. Jeffers , A. Kaminski , D. Montes , S. Pedraz , C. Rodríguez-López , J. H. M. M. Schmitt

The CARMENES search for exoplanets around M dwarfs. Activity indicators at visible and near-infrared wavelengths

The CARMENES survey is searching for Earth-like planets orbiting M dwarfs using the radial velocity method. Studying the stellar activity of the target stars is important to avoid false planet detections and to improve our understanding of…

太阳与恒星天体物理 · 物理学 2019-03-06 P. Schöfer , S. V. Jeffers , A. Reiners , D. Shulyak , B. Fuhrmeister , E. N. Johnson , M. Zechmeister , I. Ribas , A. Quirrenbach , P. J. Amado , J. A. Caballero , G. Anglada-Escudé , F. F. Bauer , V. J. S. Béjar , M. Cortés-Contreras , S. Dreizler , E. W. Guenther , A. Kaminski , M. Kürster , M. Lafarga , D. Montes , J. C. Morales , S. Pedraz , L. Tal-Or

The CARMENES search for exoplanets around M dwarfs : Understanding the wavelength dependence of radial velocity measurements

Context. Current exoplanet surveys are focused on detecting small exoplanets orbiting in the liquid-water habitable zones of their host stars. Despite the recent significant advancements in instrumental developments, the current limitation…

地球与行星天体物理 · 物理学 2025-10-30 S. V. Jeffers , J. R. Barnes , P. Schöfer , S. Reffert , V. J. S. Béjar , A. Quirrenbach , A. Reiners , Y. Shan , M. R. Zapatero Osorio , B. Fuhrmeister , P. J. Amado , J. A. Caballero , I. Ribas , C. Cardona Guillén , F. Del Sordo , M. Fernández , A. García-López , A. Guijarro , A. P. Hatzes , M. Lafarga , N. Lodieu , M. Kürster , K. Molaverdikhani , D. Montes , J. C. Morales

The CARMENES search for exoplanets around M dwarfs. Guaranteed time observations Data Release 1 (2016-2020)

The CARMENES instrument was conceived to deliver high-accuracy radial velocity (RV) measurements with long-term stability to search for temperate rocky planets around a sample of nearby cool stars. The broad wavelength coverage was designed…

地球与行星天体物理 · 物理学 2023-03-01 I. Ribas , A. Reiners , M. Zechmeister , J. A. Caballero , J. C. Morales , S. Sabotta , D. Baroch , P. J. Amado , A. Quirrenbach , M. Abril , J. Aceituno , G. Anglada-Escudé , M. Azzaro , D. Barrado , V. J. S. Béjar , D. Benítez de Haro , G. Bergond , P. Bluhm , R. Calvo Ortega , C. Cardona Guillén , P. Chaturvedi , C. Cifuentes , J. Colomé , D. Cont , M. Cortés-Contreras , S. Czesla , E. Díez-Alonso , S. Dreizler , C. Duque-Arribas , N. Espinoza , M. Fernández , B. Fuhrmeister , D. Galadí-Enríquez , A. García-López , E. González-Álvarez , J. I. González Hernández , E. W. Guenther , E. de Guindos , A. P. Hatzes , Th. Henning , E. Herrero , D. Hintz , Á. L. Huelmo , S. V. Jeffers , E. N. Johnson , E. de Juan , A. Kaminski , J. Kemmer , J. Khaimova , S. Khalafinejad , D. Kossakowski , M. Kürster , F. Labarga , M. Lafarga , S. Lalitha , M. Lampón , J. Lillo-Box , N. Lodieu , M. J. López González , M. López-Puertas , R. Luque , H. Magán , L. Mancini , E. Marfil , E. L. Martín , S. Martín-Ruiz , K. Molaverdikhani , D. Montes , E. Nagel , L. Nortmann , G. Nowak , E. Pallé , V. M. Passegger , A. Pavlov , S. Pedraz , V. Perdelwitz , M. Perger , A. Ramón-Ballesta , S. Reffert , D. Revilla , E. Rodríguez , C. Rodríguez-López , S. Sadegi , M. Á. Sánchez Carrasco , A. Sánchez-López , J. Sanz-Forcada , S. Schäfer , M. Schlecker , J. H. M. M. Schmitt , P. Schöfer , A. Schweitzer , W. Seifert , Y. Shan , S. L. Skrzypinski , E. Solano , O. Stahl , M. Stangret , S. Stock , J. Stürmer , H. M. Tabernero , L. Tal-Or , T. Trifonov , S. Vanaverbeke , F. Yan , M. R. Zapatero Osorio

CARMENES input catalogue of M dwarfs: III. Rotation and activity from high-resolution spectroscopic observations

CARMENES is a spectrograph for radial velocity surveys of M dwarfs with the aim of detecting Earth-mass planets orbiting in the habitable zones of their host stars. To ensure an optimal use of the CARMENES Guaranteed Time Observations, in…

太阳与恒星天体物理 · 物理学 2018-06-20 S. V. Jeffers , P. Schoefer , A. Lamert , A. Reiners , D. Montes , J. A. Caballero , M. Cortes-Contreras , C. J. Marvin , V. M. Passegger , M. Zechmeister , A. Quirrenbach , F. J. Alonso-Floriano , P. J. Amado , F. F. Bauer , E. Casal , E. Diez Alonso , E. Herrero , J. C. Morales , R. Mundt , I. Ribas , L. F. Sarmiento

The CARMENES search for exoplanets around M dwarfs: Stable radial-velocity variations at the rotation period of AD~Leonis -- A test case study of current limitations to treating stellar activity

Context: A challenge with radial-velocity (RV) data is disentangling the origin of signals either due to a planetary companion or to stellar activity. In fact, the existence of a planetary companion has been proposed, as well as contested,…

地球与行星天体物理 · 物理学 2022-10-19 D. Kossakowski , M. Kürster , Th. Henning , T. Trifonov , J. A. Caballero , M. Lafarga , F. F. Bauer , S. Stock , J. Kemmer , S. V. Jeffers , P. J. Amado , M. Pérez-Torres , V. J. S. Béjar , M. Cortés-Contreras , I. Ribas , A. Reiners , A. Quirrenbach , J. Aceituno , D. Baroch , C. Cifuentes , S. Dreizler , J. S. Forcada , A. Hatzes , A. Kaminski , D. Montes , J. C. Morales , A. Pavlov , L. Peña , V. Perdelwitz , S. Reffert , D. Revilla , C. Rodríguez López , A. Rosich , S. Sadegi , P. Schöfer , A. Schweitzer , M. Zechmeister

The CARMENES search for exoplanets around M dwarfs: High-resolution optical and near-infrared spectroscopy of 324 survey stars

The CARMENES radial velocity (RV) survey is observing 324 M dwarfs to search for any orbiting planets. In this paper, we present the survey sample by publishing one CARMENES spectrum for each M dwarf. These spectra cover the wavelength…

太阳与恒星天体物理 · 物理学 2018-04-25 A. Reiners , M. Zechmeister , J. A. Caballero , I. Ribas , J. C. Morales , S. V. Jeffers , P. Schöfer , L. Tal-Or , A. Quirrenbach , P. J. Amado , A. Kaminski , W. Seifert , M. Abril , J. Aceituno , F. J. Alonso-Floriano , M. Ammler-von Eiff , R. Antona , G. Anglada-Escudé , H. Anwand-Heerwart , B. Arroyo-Torres , M. Azzaro , D. Baroch , D. Barrado , F. F. Bauer , S. Becerril , V. J. S. Béjar , D. Benítez , Z. M. Berdiñas , G. Bergond , M. Blümcke , M. Brinkmöller , C. del Burgo , J. Cano , M. C. Cárdenas Vázquez , E. Casal , C. Cifuentes , A. Claret , J. Colomé , M. Cortés-Contreras , S. Czesla , E. Díez-Alonso , S. Dreizler , C. Feiz , M. Fernández , I. M. Ferro , B. Fuhrmeister , D. Galadí-Enríquez , A. Garcia-Piquer , M. L. García Vargas , L. Gesa , V. Gómez , Galera , J. I. González Hernández , R. González-Peinado , U. Grözinger , S. Grohnert , J. Guàrdia , E. W. Guenther , A. Guijarro , E. de Guindos , J. Gutiérrez-Soto , H. -J. Hagen , A. P. Hatzes , P. H. Hauschildt , R. P. Hedrosa , J. Helmling , Th. Henning , I. Hermelo , R. Hernández Arabí , L. Hernández Castaño , F. Hernández Hernando , E. Herrero , A. Huber , P. Huke , E. Johnson , E. de Juan , M. Kim , R. Klein , J. Klüter , A. Klutsch , M. Kürster , M. Lafarga , A. Lamert , M. Lampón , L. M. Lara , W. Laun , U. Lemke , R. Lenzen , R. Launhardt , M. López del Fresno , J. López-González , M. López-Puertas , J. F. López Salas , J. López-Santiago , R. Luque , H. Magán Madinabeitia , U. Mall , L. Mancini , H. Mandel , E. Marfil , J. A. Marín Molina , D. Maroto , Fernández , E. L. Martín , S. Martín-Ruiz , C. J. Marvin , R. J. Mathar , E. Mirabet , D. Montes , M. E. Moreno-Raya , A. Moya , R. Mundt , E. Nagel , V. Naranjo , L. Nortmann , G. Nowak , A. Ofir , R. Oreiro , E. Pallé , J. Panduro , J. Pascual , V. M. Passegger , A. Pavlov , S. Pedraz , A. Pérez-Calpena , D. Pérez Medialdea , M. Perger , M. A. C. Perryman , M. Pluto , O. Rabaza , A. Ramón , R. Rebolo , P. Redondo , S. Reffert , S. Reinhart , P. Rhode , H. -W. Rix , F. Rodler , E. Rodríguez , C. Rodríguez-López , A. Rodríguez Trinidad , R. -R. Rohloff , A. Rosich , S. Sadegi , E. Sánchez-Blanco , M. A. Sánchez Carrasco , A. Sánchez-López , J. Sanz-Forcada , P. Sarkis , L. F. Sarmiento , S. Schäfer , J. H. M. M. Schmitt , J. Schiller , A. Schweitzer , E. Solano , O. Stahl , J. B. P. Strachan , J. Stürmer , J. C. Suárez , H. M. Tabernero , M. Tala , T. Trifonov , S. M. Tulloch , R. G. Ulbrich , G. Veredas , J. I. Vico Linares , F. Vilardell , K. Wagner , J. Winkler , V. Wolthoff , W. Xu , F. Yan , M. R. Zapatero Osorio

The CARMENES search for exoplanets around M dwarfs. Variability on long timescales as seen in chromospheric indicators

It is clearly established that the Sun has an 11-year cycle that is caused by its internal magnetic field. This cycle is also observed in a sample of M dwarfs. In the framework of exoplanet detection or atmospheric characterisation of…

太阳与恒星天体物理 · 物理学 2023-02-08 B. Fuhrmeister , S. Czesla , V. Perdelwitz , E. Nagel , J. H. M. M. Schmitt , S. V. Jeffers , J. A. Caballero , M. Zechmeister , D. Montes , A. Reiners , Á. López-Gallifa , I. Ribas , A. Quirrenbach , P. J. Amado , D. Galadí-Enríquez , V. J. S. Béjar , C. Danielski , A. P. Hatzes , A. Kaminski , M. Kürster , J. C. Morales , M. R. Zapatero Osorio

The CARMENES search for exoplanets around M dwarfs: Convective shift and starspot constraints from chromatic radial velocities

Context. Variability caused by stellar activity represents a challenge to the discovery and characterization of terrestrial exoplanets and complicates the interpretation of atmospheric planetary signals. Aims. We aim to use a detailed…

太阳与恒星天体物理 · 物理学 2020-09-16 D. Baroch , J. C. Morales , I. Ribas , E. Herrero , A. Rosich , M. Perger , G. Anglada-Escudé , A. Reiners , J. A. Caballero , A. Quirrenbach , P. J. Amado , S. V. Jeffers , C. Cifuentes , V. M. Passegger , A. Schweitzer , M. Lafarga , F. F. Bauer , V. J. S. Béjar , J. Colomé , M. Cortés-Contreras , S. Dreizler , D. Galadí-Enríquez , A. P. Hatzes , Th. Henning , A. Kaminski , M. Kürster , D. Montes , C. Rodríguez-López , M. Zechmeister

The CARMENES search for exoplanets around M dwarfs -- Photospheric parameters of target stars from high-resolution spectroscopy. II. Simultaneous multiwavelength range modeling of activity insensitive lines

We present precise photospheric parameters of 282 M dwarfs determined from fitting the most recent version of PHOENIX models to high-resolution CARMENES spectra in the visible (0.52 - 0.96 $\mu$m) and near-infrared wavelength range (0.96 -…

太阳与恒星天体物理 · 物理学 2019-07-17 V. M. Passegger , A. Schweitzer , D. Shulyak , E. Nagel , P. H. Hauschildt , A. Reiners , P. J. Amado , J. A. Caballero , M. Cortés-Contreras , A. J. Domínguez-Fernández , A. Quirrenbach , I. Ribas , M. Azzaro , G. Anglada-Escudé , F. F. Bauer , V. J. S. Béjar , S. Dreizler , E. W. Guenther , T. Henning , S. V. Jeffers , A. Kaminski , M. Kürster , M. Lafarga , E. L. Martín , D. Montes , J. C. Morales , J. H. M. M. Schmitt , M. Zechmeister

CARMENES input catalogue of M dwarfs VIII. Kinematics in the solar neighbourhood

Aims. Our goals are to characterise the kinematic properties and to identify young and old stars among the M dwarfs of the CARMENES input catalogue. Methods. We compiled the spectral types, proper motions, distances, and radial velocities…

太阳与恒星天体物理 · 物理学 2024-11-12 M. Cortés-Contreras , J. A. Caballero , D. Montes , C. Cardona-Guillén , V. J. S. Béjar , C. Cifuentes , H. M. Tabernero , M. R. Zapatero Osorio , P. J. Amado , S. V. Jeffers , M. Lafarga , N. Lodieu , A. Quirrenbach , A. Reiners , I. Ribas , P. Schöfer , A. Schweitzer , W. Seifert

The CARMENES search for exoplanets around M dwarfs. Cluster analysis of signals from spectral activity indicators to search for shared periods

A multitude of spectral activity indicators are routinely computed nowadays from the spectra generated as part of planet-hunting radial velocity surveys. Searching for shared periods among them can help to robustly identify astrophysical…

太阳与恒星天体物理 · 物理学 2025-04-14 J. Kemmer , M. Lafarga , B. Fuhrmeister , Y. Shan , P. Schöfer , S. V. Jeffers , J. A. Caballero , A. Quirrenbach , P. J. Amado , A. Reiners , I. Ribas , V. J. S. Béjar , F. Del Sordo , A. P. Hatzes , Th. Henning , I. Hermelo , A. Kaminski , D. Montes , J. C. Morales , S. Reffert

Long-term magnetic activity of a sample of M-dwarf stars from the HARPS program II. Activity and radial velocity

Due to their low mass and luminosity, M dwarfs are ideal targets if one hopes to find low-mass planets similar to Earth by using the radial velocity (RV) method. However, stellar magnetic cycles could add noise or even mimic the RV signal…

太阳与恒星天体物理 · 物理学 2015-06-04 J. Gomes da Silva , N. C. Santos , X. Bonfils , X. Delfosse , T. Forveille , S. Udry , X. Dumusque , C. Lovis

The CARMENES search for exoplanets around M dwarfs. A homogeneous catalogue of projected rotational velocities accounting for limb-darkening

Stellar rotation is closely linked to both age and magnetic activity. Through gyrochronology, it provides a means to estimate stellar ages and trace the evolution of planetary systems, and it is also crucial to constrain and correct stellar…

太阳与恒星天体物理 · 物理学 2026-05-27 R. Varas , G. Morello , M. Zechmeister , P. J. Amado , F. J. Pozuelos , J. A. Caballero , A. Claret , C. Cifuentes , R. Morales , A. Quirrenbach , A. Reiners , I. Ribas , V. J. S. Béjar , M. Cortés-Contreras , A. P. Hatzes , Th. Henning , I. Hermelo , H. L. Ruh , A. Schweitzer , H. M. Tabernero , M. R. Zapatero Osorio

CARMENES input catalog of M dwarfs VI. A time-resolved Ca II H&K catalog from archival data

Radial-velocity (RV) jitter caused by stellar magnetic activity is an important factor in state-of-the-art exoplanet discovery surveys such as CARMENES. Stellar rotation, along with heterogeneities in the photosphere and chromosphere caused…

太阳与恒星天体物理 · 物理学 2021-08-25 V. Perdelwitz , M. Mittag , L. Tal-Or , J. H. M. M. Schmitt , J. A. Caballero , S. V. Jeffers , A. Reiners , A. Schweitzer , T. Trifonov , I. Ribas , A. Quirrenbach , P. J. Amado , W. Seifert , C. Cifuentes , M. Cortés-Contreras , D. Montes , D. Revilla , S. L. Skrzypinski

The CARMENES search for exoplanets around M dwarfs - Photospheric parameters of target stars from high-resolution spectroscopy

The new CARMENES instrument comprises two high-resolution and high-stability spectrographs that are used to search for habitable planets around M dwarfs in the visible and near-infrared regime via the Doppler technique. Characterising our…

太阳与恒星天体物理 · 物理学 2018-07-04 V. M. Passegger , A. Reiners , S. V. Jeffers , S. Wende-von Berg , P. Schoefer , J. A. Caballero , A. Schweitzer , P. J. Amado , V. J. S. Bejar , M. Cortes-Contreras , A. P. Hatzes , M. Kuerster , D. Montes , S. Pedraz , A. Quirrenbach , I. Ribas , W. Seifert