J/A+A/631/A76 MASCARA-3b radial and light curves (Hjorth+, 2019)
MASCARA-3b: A hot Jupiter transiting a bright F7 star in an aligned orbit.
Hjorth M., Albrecht S., Talens G.J.J., Grundahl F., Justesen A.B.,
Otten G.P.P.L., Antoci V., Dorval P., Foxell E., Fredslund Andersen M.,
Murgas F., Palle E., Stuik R., Snellen I.A.G., Van Eylen V.
<Astron. Astrophys. 631, A76 (2019)>
=2019A&A...631A..76H 2019A&A...631A..76H (SIMBAD/NED BibCode)
ADC_Keywords: Stars, double and multiple ; Exoplanets ; Radial velocities ;
Magnitudes
Keywords: planets and satellites: individual: MASCARA-3
Abstract:
We report the discovery of MASCARA-3b, a hot Jupiter orbiting its
bright (V=8.33) late F-type host every 5.55149±0.00001-days in
an almost circular orbit (e=0.050+0.020-0.017). This is the
fourth exoplanet discovered with the Multi-site All-Sky CAmeRA
(MASCARA), and the first of these that orbits a late-type star.
Follow-up spectroscopic measurements were obtained in and out of
transit with the Hertzsprung SONG telescope. Combining the MASCARA
photometry and SONG radial velocities reveals a radius and mass of
1.36±0.05RJup and 4.2±0.2MJup. In addition, SONG spectroscopic
transit observations were obtained on two separate nights. From
analyzing the mean out-of-transit broadening function, we obtain
vsini*=20.4±0.4km/s. In addition, investigating the
Rossiter-McLaughlin effect, as observed in the distortion of the
stellar lines directly and through velocity anoma lies, we find the
projected obliquity to be λ=1.2+8.2-7.4deg, which is
consistent with alignment.
Description:
Table of the photometry from MASCARA and radial velocities from SONG.
Objects:
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RA (2000) DE Designation(s)
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10 47 38.35 +71 39 21.2 MASCARA-3b = HD 93148
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
tablea1.dat 22 65 *Radial velocities at times out of transit for
MASCARA-3 using the SONG telescope
tablea2.dat 22 24 *Radial velocities during transit on the night of
May 29, 2018, for MASCARA-3 using the SONG telescope
photom.dat 64 320 Photometry from MASCARA
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Note on tablea1.dat: All spectra were taken with the iodine cell as reference.
Although the individual uncertainties have some dependence on the flux level
(which is near 30m/s at the highest and 60m/s at the lowest flux level), the
overall instrumental uncertainty (σRV) is estimated to be ∼40m/s.
To account for the possibility of underestimating this error, we introduced
an additional jitter term during the fitting procedure.
Note on tablea2.dat: All spectra were taken with the ThAr cell as reference,
causing the uncertainties to be larger than the RVs reported in Table A.1,
in addition to a different RV offset. The instrumental uncertainty
(σRVRM) is estimated to be 50m/s.
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See also:
J/A+A/606/A73 : MASCARA-1 b (HD201585) light curves & spectra (Talens+, 2017)
J/A+A/612/A57 : MASCARA-2 b (HD185603) light curves & spectra (Talens+, 2018)
J/A+A/616/A151 : MASCARA-2b NaI + Ha absorption lines (Casasayas-Barris+, 2018)
J/A+A/628/A9 : MASCARA-2b transmission spectra (Casasayas-Barris+, 2019)
Byte-by-byte Description of file: tablea1.dat
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Bytes Format Units Label Explanations
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1- 14 F14.6 d Time Barycentric time of mid-exposure (BJD)
18- 22 F5.1 m/s RV Radial velocity corrected for barycentric
motion, RV+6000m/s
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Byte-by-byte Description of file: tablea2.dat
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Bytes Format Units Label Explanations
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1- 14 F14.6 d Time Barycentric time of mid-exposure (BJD)
17- 22 F6.1 m/s RVRM Radial velocity corrected for barycentric
motion, RVRM+15200m/s
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Byte-by-byte Description of file: photom.dat
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Bytes Format Units Label Explanations
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1- 21 F21.17 h Time Time from mid-transit
23- 40 F18.16 --- Flux Binned flux
44- 64 F21.19 --- e_Flux Error in binned flux (incl. jitter term)
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Acknowledgements:
Maria Hjorth, hjorth(at)phys.au.dk
(End) Patricia Vannier [CDS] 26-Sep-2019