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J/AJ/154/181       Radial velocities for the star HD 34445         (Vogt+, 2017)

A six-planet system around the star HD 34445. Vogt S.S., Butler R.P., Burt J., Tuomi M., Laughlin G., Holden B., Teske J.K., Shectman S.A., Crane J.D., Diaz M., Thompson I.B., Arriagada P., Keiser S. <Astron. J., 154, 181 (2017)> =2017AJ....154..181V (SIMBAD/NED BibCode)
ADC_Keywords: Stars, double and multiple ; Stars, G-type ; Exoplanets ; Radial velocities Keywords: planetary systems Abstract: We present a new precision radial velocity (RV) data set that reveals a multi-planet system orbiting the G0V star HD 34445. Our 18-year span consists of 333 precision RV observations, 56 of which were previously published and 277 of which are new data from the Keck Observatory, Magellan at Las Campanas Observatory, and the Automated Planet Finder at Lick Observatory. These data indicate the presence of six planet candidates in Keplerian motion about the host star with periods of 1057, 215, 118, 49, 677, and 5700 days, and minimum masses of 0.63, 0.17, 0.1, 0.05, 0.12, and 0.38 MJ, respectively. The HD 34445 planetary system, with its high degree of multiplicity, its long orbital periods, and its induced stellar RV half-amplitudes in the range 2 m/s~<K~<5 m/s is fundamentally unlike either our own solar system (in which only Jupiter and Saturn induce significant reflex velocities for the Sun), or the Kepler multiple-transiting systems (which tend to have much more compact orbital configurations). Description: The data consist of 333 precision RVs obtained with a variety of telescopes. Howard et al. (2010ApJ...721.1467H) published a 12-year set of HIRES velocities, along with a 6-year set of 50 HET velocities. To that, we added 200 RVs obtained with the HIRES spectrometer from 1998 January 24 to 2014 August 26. The HIRES spectra used by Howard et al. (2010ApJ...721.1467H) were shared by the California Planet Search team (CPS) and Lick-Carnegie Exoplanet Survey (LCES) teams before the two teams split in late-2007. We also obtained a set of 54 RVs with the APF and a set of 23 RVs with the PFS. We traditionally bin our velocities over 2-hr time periods to suppress stellar jitter. However, in the present paper, we show all of our HIRES, APF, and PFS velocities as unbinned. To summarize, our analysis is based on 54 APF velocities, 50 HET velocities, 200 Keck velocities reduced with our pipeline, 6 Keck velocities reduced by Howard et al. (2010ApJ...721.1467H), and 23 PFS velocities. Objects: -------------------------------------------------- RA (ICRS) DE Designation(s) -------------------------------------------------- 05 17 40.98 +07 21 12.1 HD 34445 = HIP 24681 -------------------------------------------------- File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table2.dat 42 200 LCES/HIRES radial velocities for HD 34445 table3.dat 42 6 CPS/HIRES radial velocities for HD 34445 table4.dat 42 50 HET radial velocities for HD 34445 table5.dat 42 54 APF radial velocities for HD 34445 table6.dat 42 23 PFS radial velocities for HD 34445
See also: III/159 : Ca II H and K Measurements Made at MWO (Duncan+ 1991) J/AJ/153/208 : LCES HIRES/Keck radial velocity Exoplanet Survey (Butler+, 2017) Byte-by-byte Description of file: table[23456].dat
Bytes Format Units Label Explanations
1- 13 F13.5 d BJD Barycentric Julian Date of observation 15- 20 F6.2 m/s RV [-34.62/29.58] Radial velocity 22- 25 F4.2 m/s e_RV [1.01/5.95] Uncertainty in RV 27- 33 F7.4 --- Sindex [0.1225/0.4032]? Mt. Wilson S-index (Duncan et al. 1991, Cat. III/159) (not in Tables 3 and 4) 35- 42 F8.5 --- Hindex [0.02907/0.03212]? H-index (Gomes da Silva et al. 2011A&A...534A..30G) (not in Tables 3,4,5)
History: From electronic version of the journal
(End) Prepared by [AAS], Tiphaine Pouvreau [CDS] 24-Jul-2018
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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