J/ApJ/889/L34 Oscillations in red giants from TESS data (Silva+, 2020)
Detection and characterization of oscillating red giants: first results from
the TESS Satellite.
Silva Aguirre V., Stello D., Stokholm A., Mosumgaard J.R., Ball W.H.,
Basu S., Bossini D., Bugnet L., Buzasi D., Campante T.L., Carboneau L.,
Chaplin W.J., Corsaro E., Davies G.R., Elsworth Y., Garcia R.A., Gaulme P.,
Hall O.J., Handberg R., Hon M., Kallinger T., Kang L., Lund M.N.,
Mathur S., Mints A., Mosser B., Celik Orhan Z., Rodrigues T.S., Vrard M.,
Yildiz M., Zinn J.C., Ortel S., Beck P.G., Bell K.J., Guo Z., Jiang C.,
Kuszlewicz J.S., Kuehn C.A., Li T., Lundkvist M.S., Pinsonneault M.,
Tayar J., Cunha M.S., Hekker S., Huber D., Miglio A., Monteiro M.J.P.F.G.,
Slumstrup D., Winther M.L., Angelou G., Benomar O., Bodi A., De Moura B.L.,
Deheuvels S., Derekas A., Di Mauro M.P., Dupret M.-A., Jimenez A.,
Lebreton Y., Matthews J., Nardetto N., Do Nascimento J.D., Pereira F.,
Rodriguez Diaz L.F., Serenelli A.M., Spitoni E., Stonkute E., Suarez J.C.,
Szabo R., Van Eylen V., Ventura R., Verma K., Weiss A., Wu T., Barclay T.,
Christensen-Dalsgaard J., Jenkins J.M., Kjeldsen H., Ricker G.R.,
Seager S., Vanderspek R.
<Astrophys. J., 889, L34-34 (2020)>
=2020ApJ...889L..34S 2020ApJ...889L..34S (SIMBAD/NED BibCode)
ADC_Keywords: Stars, giant; Stars, masses; Stars, ages; Stars, diameters;
Asteroseismology; Abundances, [Fe/H]
Keywords: Asteroseismology - Fundamental parameters of stars - Red giant stars
Abstract:
Since the onset of the "space revolution" of high-precision
high-cadence photometry, asteroseismology has been demonstrated as a
powerful tool for informing Galactic archeology investigations. The
launch of the NASA Transiting Exoplanet Survey Satellite (TESS)
mission has enabled seismic-based inferences to go full sky-providing
a clear advantage for large ensemble studies of the different Milky
Way components. Here we demonstrate its potential for investigating
the Galaxy by carrying out the first asteroseismic ensemble study of
red giant stars observed by TESS. We use a sample of 25 stars for
which we measure their global asteroseimic observables and estimate
their fundamental stellar properties, such as radius, mass, and age.
Significant improvements are seen in the uncertainties of our
estimates when combining seismic observables from TESS with
astrometric measurements from the Gaia mission compared to when the
seismology and astrometry are applied separately. Specifically, when
combined we show that stellar radii can be determined to a precision
of a few percent, masses to 5%-10%, and ages to the 20% level. This is
comparable to the precision typically obtained using end-of-mission
Kepler data.
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table1.dat 199 24 Measured and derived stellar properties of our targets
--------------------------------------------------------------------------------
See also:
I/259 : The Tycho-2 Catalogue (Hog+ 2000)
I/311 : Hipparcos, the New Reduction (van Leeuwen, 2007)
IV/38 : TESS Input Catalog - v8.0 (TIC-8) (Stassun+, 2019)
J/ApJ/469/355 : Teff, B-V and BC relation (Flower, 1996)
J/A+A/536/A71 : Atmospheric parameters of nearby giant stars (Jones+, 2011)
J/ApJ/765/L41 : Asteroseismic classification of KIC objects (Stello+, 2013)
J/A+A/574/A50 : Chemical abundances of giants and subgiants (Jofre+, 2015)
J/MNRAS/448/2749 : 257 field giant stars spectroscopic param. (Alves+, 2015)
J/A+A/580/A24 : Abundances in dwarfs, subgiants, and giants (da Silva+, 2015)
J/AJ/150/88 : Abundances in the local region. I. G and K giants (Luck, 2015)
J/MNRAS/452/2127 : Fundamental param. of Kepler stars (Silva Aguirre+, 2015)
J/AJ/152/19 : Pan-Pacific Planet Search (PPPS). V. (Wittenmyer+, 2016)
J/A+A/597/A30 : Seismology & spectroscopy of CoRoGEE red giants (Anders+, 2017)
J/ApJ/835/83 : K2 GAP data release. I. Campaign 1 (Stello+, 2017)
J/MNRAS/475/5487 : Stellar properties of KIC stars (Silva Aguirre+, 2018)
J/ApJS/236/42 : Asteroseismology of ∼16000 Kepler red giants (Yu+, 2018)
J/ApJS/239/32 : APOKASC-2 catalog of Kepler evolved stars (Pinsonneault+, 2018)
Byte-by-byte Description of file: table1.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 9 I9 --- TIC TESS Input Catalog identifier
11- 16 I6 --- HIP [343/117659] Hipparcos identifier
18- 23 F6.2 uHz numax [27.6/190] Frequency of maximum power
25- 28 F4.2 uHz e_numax [0.8/8] Statistical uncertainty in numax
30- 34 F5.2 uHz s_numax [0.3/30] Systematic uncertainty in numax
36- 40 F5.2 uHz Delnu [3.4/15] Frequency separation
between overtone modes
42- 45 F4.2 uHz e_Delnu [0.02/0.5] Statistical uncertainty in Delnu
47- 50 F4.2 uHz s_Delnu [0.01/3.4] Systematic uncertainty in Delnu
52- 56 F5.3 mag Vmag [3.9/8.6] Apparent V band magnitude
58- 62 F5.3 mag e_Vmag [0.009/0.02] Uncertainty in Vmag
64- 71 F8.2 K Teff [4590/5132]?=-9999.99 Stellar effective
temperature
73- 80 F8.2 K e_Teff [80]?=-9999.99 Uncertainty in Teff
82- 89 F8.2 [Sun] [Fe/H] [-0.41/0.33]?=-9999.99 Stellar metallicity
91- 98 F8.2 [Sun] e_[Fe/H] [0.08]?=-9999.99 Uncertainty in [Fe/H]
100-107 F8.2 Rsun Rad [4.6/11.3]?=-9999.99 Stellar radius
109-116 F8.2 Rsun e_Rad [0.1/0.7]?=-9999.99 Statistical uncertainty
in Rad
118-125 F8.2 Rsun s_Rad [0.05/0.7]?=-9999.99 Systematic uncertainty
in Rad
127-134 F8.2 Msun Mass [0.9/2.2]?=-9999.99 Stellar mass
136-143 F8.2 Msun e_Mass [0.04/0.3]?=-9999.99 Statistical uncertainty
in Mass
145-152 F8.2 Msun s_Mass [0.03/0.3]?=-9999.99 Systematic uncertainty
in Mass
154-161 F8.2 Gyr Age [0.8/12]?=-9999.99 Stellar age
163-170 F8.2 Gyr e_Age [0.2/3]?=-9999.99 Statistical uncertainty
in Age
172-179 F8.2 Gyr s_Age [0.1/37]?=-9999.99 Systematic uncertainty
in Age
181-199 A19 --- BibCode Atmospheric properties reference bibcode (1)
--------------------------------------------------------------------------------
Note (1): The reference from which we retrieved the central values of Teff and
[Fe/H] use for the grid-based modelling. Their uncertainties have
been homogenised to 80K and 0.08dex, respectively (see Section 4).
--------------------------------------------------------------------------------
History:
From electronic version of the journal
(End) Prepared by [AAS], Emmanuelle Perret [CDS] 19-Jul-2021