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J/A+A/604/L4    HAT-P-4 and TYC 2569-744-1 abundances and spectra (Saffe+, 2017)

Signatures of rocky planet engulfment in HAT-P-4. Saffe C., Jofre E., Martioli E., Flores M., Petrucci, R., Jaque Arancibia M. <Astron. Astrophys. 604, L4 (2017)> =2017A&A...604L...4S (SIMBAD/NED BibCode)
ADC_Keywords: Stars, double and multiple ; Planets ; Abundances Keywords: stars: abundances - planetary systems - binaries: general - stars: individual: TYC 2569-744-1 - stars: individual: HAT-P-4 Abstract: We explore condensation temperature Tc trends and the Li content in the binary system HAT-P-4, to study the possible chemical signature of planet formation. The star HAT-P-4 hosts a hot Jupiter planet detected by transits, while its stellar companion does not have any detected planets. We derived the fundamental parameters and abundances using the differential method. HAT-P-4 is found to be about 0.1dex more metal rich than its companion; it is enhanced in refractory elements and presents a higher Lithium content. We propose a scenario of a possible rocky planet engulfment in HAT-P-4, which explains the higher metallicity, the higher Li content, and the negative Tc trend we detected. Description: Detailed line-by-line data and average abundances of the A star (HAT-P-4) and its B companion, both relative to the Sun and for B relative to A. Also the reduced spectra as FITS files of stars A and B; the filenames are HAT-P-4.fits and TYC2569-744-1.fits Objects: ------------------------------------------------------------------------ RA (2000) DE Designation(s) ------------------------------------------------------------------------ 15 19 57.93 +36 13 46.8 HAT-P-4 = BD+36 2593 15 20 00.01 +36 12 18.5 TYC 2569-744-1 = 2MASS J15200001+3612185 ------------------------------------------------------------------------ File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 67 531 Line list and equivalent widths of stars A, B and Sun table2.dat 95 24 Differential abundances and errors for the stars A (HAT-P-4) and B (TYC 2569-744-1) list.dat 118 2 List of fits spectra fits/* 0 2 Individual spectra
See also: J/AJ/141/63 : Relative radial velocities of HAT-P-4 and HAT-P-14 (Winn+, 2011) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 8 F8.2 --- El Element 9- 20 F12.3 0.1nm Wave Wavelength (Å) 21- 30 F10.3 eV EP Excitation potential 31- 40 F10.3 [-] loggf Oscillation strength log(gf) (dex) 41- 49 F9.1 0.1pm WA ? Equivalent width in HAT-P-4 (star A) (1) 50- 58 F9.1 0.1pm WB ? Equivalent width in TYC 2569-744-1 (star B) (1) 59- 67 F9.1 0.1pm WSun ? Equivalent width in the Sun (1)
Note (1): The abundances of those lines without equivalent widths were measured using synthetic spectra.
Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 11 A11 --- El Element 12- 18 F7.3 --- [X/Fe]1 Abundance (A-Sun) 19- 25 F7.3 --- sobs1 Observational error (A-Sun) 26- 32 F7.3 --- spar1 Error due to stellar parameters (A-Sun) 33- 39 F7.3 --- stot1 Total error (A-Sun) 40- 46 F7.3 --- [X/Fe]2 Abundance (B-Sun) 47- 53 F7.3 --- sobs2 Observational error (B-Sun) 54- 60 F7.3 --- spar2 Error due to stellar parameters (B-Sun) 61- 67 F7.3 --- stot2 Total error (B-Sun) 68- 74 F7.3 --- [X/Fe]3 Abundance (B-A) 75- 81 F7.3 --- sobs3 Observational error (B-A) 82- 88 F7.3 --- spar3 Error due to stellar parameters (B-A) 89- 95 F7.3 --- stot3 Total error (B-A)
Byte-by-byte Description of file: list.dat
Bytes Format Units Label Explanations
1- 14 A14 --- Name Star name 16- 17 I2 h RAh Right ascension (J2000) 19- 20 I2 min RAm Right ascension (J2000) 22- 26 F5.2 s RAs Right ascension (J2000) 28 A1 --- DE- Declination sign (J2000) 29- 30 I2 deg DEd Declination (J2000) 32- 33 I2 arcmin DEm Declination (J2000) 35- 38 F4.1 arcsec DEs Declination (J2000) 40- 45 I6 --- Nx Number of pixels along X-axis 47- 53 F7.2 0.1nm blambda Lower value of wavelength interval 55- 61 F7.1 0.1nm Blambda Upper value of wavelength interval 63- 71 F9.7 0.1nm dlambda Sepctral resolution 73- 75 I3 Kibyte size Size of FITS file 77- 94 A18 --- FileName Name of FITS file, in subdirectory fits 96-118 A23 --- Title Title of the file
Acknowledgements: Carlos Saffe, csaffe(at)
(End) Carlos Saffe [Argentina], Patricia Vannier [CDS] 17-Jul-2017
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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