Chromospheric activity and rotation of FGK stars in the solar vicinity. An estimation of the radial velocity jitter

Abstract

Context: Chromospheric activity produces both photometric and spectroscopic variations that can be mistaken as planets. Large spots crossing the stellar disc can produce planet-like periodic variations in the light curve of a star. These spots clearly affect the spectral line profiles and their perturbations alter the line centroids creating a radial velocity jitter that might contaminate" the variations induced by a planet. Precise chromospheric activity measurements are needed to estimate the activity-induced noise that should be expected for a given star. Aims: We obtain precise chromospheric activity measurements and projected rotational velocities for nearby (d < 25 pc) cool (spectral types F to K) stars, to estimate their expected activity-related jitter. As a complementary objective, we attempt to obtain relationships between fluxes in different activity indicator lines, that permit a transformation of traditional activity indicators, i.e, CaII H & K lines, to others that hold noteworthy advantages. Methods: We used high resolution (~50000) echelle optical spectra. To determine the chromospheric emission of the stars in the sample, we used the spectral subtraction technique. Rotational velocities were determined using the cross-correlation technique. To infer activity-related radial velocity (RV) jitter, we used empirical relationships between this jitter and the R'_HK index. Results: We measured chromospheric activity, as given by different indicators throughout the optical spectra, and projected rotational velocities for 371 nearby cool stars. We have built empirical relationships among the most important chromospheric emission lines. Finally, we used the measured chromospheric activity to estimate the expected RV jitter for the active stars in the sample.

Accepted for publication in Astronomy & Astrophysics

References in corpus (14)

• Improved Age Estimation for Solar-Type Dwarfs Using Activity-Rotation Diagnostics
• TW Hydrae: evidence of stellar spots instead of a Hot Jupiter
• Detecting Planets Around Very Low Mass Stars with the Radial Velocity Method
• Search for exoplanets with the radial-velocity technique: quantitative diagnostics of stellar activity
• Fluxes in Hαand Ca II H and K for a sample of Southern stars
• A high-resolution spectroscopic survey of late-type stars: chromospheric activity, rotation, kinematics, and age
• An Activity Catalogue of Southern Stars
• Tracers of Chromospheric Structure I: Observations of Ca II K and H alpha in M Dwarfs
• Differential Radial Velocities and Stellar Parameters of Nearby Young Stars
• Do stellar magnetic cycles influence the measurement of precise radial velocities?
• Activity-induced radial velocity jitter in a flaring M dwarf
• Radial Velocities with CRIRES: Pushing precision down to 5-10 m/s
• Multiwavelength optical observations of two chromospherically active binary systems: V789 Mon and GZ Leo
• Multiwavelength optical observations of chromospherically active binary systems V. FF UMa (2RE J0933+624): a system with orbital period variation

Cited by in corpus (83)

• DUst Around NEarby Stars. The survey observational results
• A Bcool magnetic snapshot survey of solar-type stars
• The Collisional Evolution of Debris Disks
• A spectroscopy study of nearby late-type stars, possible members of stellar kinematic groups
• Instrumentation for the detection and characterization of exoplanets
• ARIADNE: Measuring accurate and precise stellar parameters through SED fitting
• A near-infrared interferometric survey of debris disc stars. III. First statistics based on 42 stars observed with CHARA/FLUOR
• Gaia Data Release 3: All-sky classification of 12.4 million variable sources into 25 classes
• The Gemini NICI Planet-Finding Campaign: The Frequency of Giant Planets Around Debris Disk Stars
• The Moving Group Targets of the SEEDS High-Contrast Imaging Survey of Exoplanets and Disks: Results and Observations from the First Three Years
• Metallicity of solar-type stars with debris discs and planets
• A Trend Between Cold Debris Disk Temperature and Stellar Type: Implications for the Formation and Evolution of Wide-Orbit Planets
• Incidence of debris discs around FGK stars in the solar neighbourhood
• Radial Velocity Planet Detection Biases at the Stellar Rotational Period
• Activity trends in young solar-type stars
• Characterisation of the radial velocity signal induced by rotation in late-type dwarfs
• NUV Excess in Slowly Accreting T Tauri Stars: Limits Imposed by Chromospheric Emission
• The unusual protoplanetary disk around the T Tauri star ET Cha
• The Decay of Debris Disks around Solar-Type Stars
• The GAPS Programme with HARPS-N at TNG. VII. Putting exoplanets in the stellar context: magnetic activity and asteroseismology of $\tau$ Bootis A
• The effect of magnetic activity saturation in chromospheric flux-flux relationships
• Searching for signatures of planet formation in stars with circumstellar debris discs
• The HARPS search for southern extra-solar planets. XLIII. A compact system of four super-Earth planets orbiting HD 215152
• Magnetic activity and differential rotation in the young Sun-like stars KIC 7985370 and KIC 7765135
• Rotation Periods, Inclinations, and Obliquities of Cool Stars Hosting Directly Imaged Substellar Companions: Spin-Orbit Misalignments are Common
• Alignment in star-debris disc systems seen by Herschel
• Chemically tagging the Hyades Supercluster: A homogeneous sample of F6-K4 kinematically selected northern stars
• The Ca II infrared triplet's performance as an activity indicator compared to Ca II H and K
• Magnetic fields of young solar twins
• Gaia Data Release 3: Cross-match of Gaia sources with variable objects from the literature
• Radial Velocity Variations of Photometrically Quiet, Chromospherically Inactive Kepler Stars: A Link Between RV Jitter and Photometric Flicker
• Estimating Stellar Radial Velocity Variability from Kepler and GALEX: Implications for the Radial Velocity Confirmation of Exoplanets
• The HADES RV Programme with HARPS-N@TNG. III. Flux-flux and activity-rotation relationships of early-M dwarfs
• LRG-BEASTS III: Ground-based transmission spectrum of the gas giant orbiting the cool dwarf WASP-80
• The Rotation-Activity Correlations in K and M dwarfs. I. Stellar parameters, compilations of $v\sin i$ and $P/\sin i$ for a large sample of late-K and M dwarfs
• The Hercules-Lyra Association revisited New age estimation and multiplicity study
• Metallicity determination of M dwarfs - High-resolution IR spectroscopy
• The Pan-Pacific Planet Search VII: The most eccentric planet orbiting a giant star
• The intrinsic and interstellar broadband linear polarization of nearby FGK dwarfs
• A peculiar class of debris disks from Herschel/DUNES - A steep fall off in the far infrared
• Precision angular diameters for 16 southern stars with VLTI/PIONIER
• Ca line formation in late-type stellar atmospheres: I. The model atom
• The Pan-Pacific Planet Search VI: Giant planets orbiting HD 86950 and HD 222076
• Chromospherically Active Stars in the RAVE Survey. I. The Catalogue
• Discovery of an activity cycle in the solar-analog HD 45184. Exploring Balmer and metallic lines as activity proxy candidates
• Spectroscopic metallicity determinations for W~UMa-type binary stars
• Ondr}ejov echelle spectrograph, ground based support facility for exoplanet missions
• Stellar activity as noise in exoplanet detection I. Methods and application to solar-like stars and activity cycles
• Activity time series of old stars from late F to early K. II. Radial velocity jitter and exoplanet detectability
• Chemical tagging of the Ursa Major moving group: A northern selection of FGK stars
• The GAPS Programme at TNG -- XXV. Stellar atmospheric parameters and chemical composition through GIARPS optical and near-infrared spectra
• K2 reveals pulsed accretion driven by the 2 Myr old hot Jupiter CI Tau b
• A dusty benchmark brown dwarf near the ice line of HD 72946
• The KOBE experiment: K-dwarfs Orbited By habitable Exoplanets. Project goals, target selection and stellar characterization
• Interpreting the extended emission around three nearby debris disc host stars
• Rotation and magnetic activity evolution of Sun-like stars
• The CARMENES search for exoplanets around M dwarfs. A super-Earth planet orbiting HD 79211 (GJ 338 B)
• Potential multi-component structure of the debris disk around HIP 17439 revealed by Herschel/DUNES
• Stellar atmospheric parameters of FGK-type stars from high-resolution optical and near-infrared CARMENES spectra
• HD 38858: a solar type star with a $\sim$10.8 yr activity cycle. Searching for Balmer and metallic line variations
• Star-spot distributions and chromospheric activity on the RS CVn type eclipsing binary SV Cam
• Chromospheric Models and the Oxygen Abundance in Giant Stars
• White dwarf binaries Across the H-R Diagram
• The atmosphere of WASP-17b: Optical high-resolution transmission spectroscopy
• S and VV Corona Australis: Spectroscopic Variability in Two Young Binary Star Systems
• Hunting Down White Dwarf--Main Sequence Binaries Using Multi-Wavelength Observations
• From CoRoT 102899501 to the Sun. A time evolution model of chromospheric activity on the main sequence
• Study of Chemically Peculiar Stars-I : High-resolution Spectroscopy and K2 Photometry of Am Stars in the Region of M44
• Luminaries in the Sky: The TESS Legacy Sample of Bright Stars. I. Asteroseismic detections in naked-eye main-sequence and sub-giant solar-like oscillators
• The GAPS programme at TNG XXXIV. Activity-rotation, flux-flux relationships, and active region evolution through stellar age
• Quantifying the Carbon Abundances in the Secondary Stars of SS Cygni, RU Pegasi, and GK Persei
• The GAPS programme at TNG XXVI. Magnetic activity in M stars: spectroscopic monitoring of AD Leonis
• Solar photospheric spectrum microvariability II. Observed relations to magnetic activity and radial-velocity modulation
• KOBE-1: The first planetary system from the KOBE survey. Two planets likely residing in the sub-Neptune mass regime around a late K-dwarf
• ${\zeta }^1+{\zeta }^2$ Reticuli binary system: A puzzling chromospheric activity pattern
• Periodicity in some light curves of the solar analogue V352 CMa
• FR Cnc Revisited: Photometry, Polarimetry and Spectroscopy
• High-resolution spectroscopy of Boyajian's star during optical dimming events
• The Solar Neighborhood L: Spectroscopic Discovery of K Dwarfs Younger Than 1 Gyr and New Binaries within 30 pc
• iSTARMOD: A Python Code to Quantify Chromospheric Activity by Using the Spectral Subtraction Technique
• A test field for Gaia. Radial velocity catalogue of stars in the South Ecliptic Pole
• Radial velocity analysis of stars with debris discs
• Discovery and Characterization of White Dwarf-FGK Main-Sequence Binaries within the Optical Main-Sequence Locus