VizieR Online Data Catalog: HARPS-N solar radial velocities and activity (Milbourne+, 2019)
Abstract
In this work, we analyze 3yr (Jul 2015-Sep 2017) of solar observations during the decline of Carrington Cycle 24 to test models of radial-velocity variations of Sun-like stars. We compare solar telescope/HARPS-N measurements of the solar RVs and logR'HK, SDO/HMI disk-resolved activity images, and SORCE/TIM measurements of the TSI.
The High Radial-velocity Planet Searcher for the Northern Hemisphere (HARPS-N) spectrograph at the Telescopio Nazionale Galileo (TNG) on La Palma is a cross-dispersed echelle spectrograph spanning the visible range (383-690nm with resolving power R=115000). See Section 2.1. The Helioseismic and Magnetic Imager (HMI) onboard the Solar Dynamics Observatory (SDO) captures full-disk images of the Sun with near single-granule resolution. We use six images each day, sampled evenly over the 2.5yr operational period of the solar telescope at HARPS-N. See Section 2.2. The Total Irradiance Monitor (TIM) on board the SOlar Radiation and Climate Experiment (SORCE) measures the Total Solar Irradiance (TSI) using a set of four Electrical Substitution Radiometers. See Section 2.3. (1 data file).- Publication:
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VizieR Online Data Catalog
- Pub Date:
- August 2020
- DOI:
- 10.26093/cds/vizier.18740107
- Bibcode:
- 2020yCat..18740107M
- Keywords:
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- Sun;
- Radial velocities