J/ApJ/919/131 Oscillating red giants from the TESS QLP (Hon+, 2021)
A "quick look" at all-sky Galactic archeology with TESS: 158000 oscillating red
giants from the MIT Quick-Look Pipeline.
Hon M., Huber D., Kuszlewicz J.S., Stello D., Sharma S., Tayar J.,
Zinn J.C., Vrard M., Pinsonneault M.H.
<Astrophys. J., 919, 131 (2021)>
=2021ApJ...919..131H 2021ApJ...919..131H
ADC_Keywords: Asteroseismology; Stars, giant; Stars, diameters;
Stars, distances; Effective temperatures; Photometry; Optical
Keywords: Asteroseismology ; Stellar oscillations ; Astronomy data analysis ;
Galactic archaeology
Abstract:
We present the first near all-sky yield of oscillating red giants from
the prime mission data of NASA's Transiting Exoplanet Survey Satellite
(TESS). We apply machine learning toward long-cadence TESS photometry
from the first data release by the MIT Quick-look Pipeline to
automatically detect the presence of red giant oscillations in
frequency power spectra. The detected targets are conservatively
vetted to produce a total of 158505 oscillating red giants, which is
an order of magnitude increase over the yield from Kepler and K2 and a
lower limit to the possible yield of oscillating giants across TESS's
nominal mission. For each detected target, we report effective
temperatures and radii derived from colors and Gaia parallaxes, as
well as estimates of their frequency at maximum oscillation power.
Using our measurements, we present the first near all-sky
Gaia-asteroseismology mass map, which shows global structures
consistent with the expected stellar populations of our Galaxy. To
demonstrate the strong potential of TESS asteroseismology for Galactic
archeology even with only one month of observations, we identify
354 new candidates for oscillating giants in the Galactic halo,
display the vertical mass gradient of the Milky Way disk, and
visualize correlations of stellar masses with kinematic phase-space
substructures, velocity dispersions, and α-abundances.
Description:
We use all Full Frame Image (FFI) light curves from the Quick-Look
Pipeline (QLP) team's first data release, which comprises observations
across Sectors 1-26 (Year 1 and 2). This data release includes all
targets brighter than a TESS magnitude of 13.5 and contains
24,376,080 light curves that have an observing cadence of ∼30min.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 82 158505 List of seismic detections
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See also:
IV/38 : TESS Input Catalog - v8.0 (TIC-8) (Stassun+, 2019)
IV/39 : TESS Input Catalog version 8.2 (TIC v8.2) (Paegert+, 2021)
J/AJ/128/1177 : Galactic stellar abundances (Venn+, 2004)
J/A+A/453/635 : Modelling the Gal. Interstellar Extinction (Marshall+, 2006)
J/A+A/497/497 : Physical param. from JHK flux (Gonzalez-Hernandez+, 2009)
J/A+A/562/A71 : Abundances of solar neighbourhood dwarfs (Bensby+, 2014)
J/MNRAS/445/2758 : KIC giants Bayesian dist. & extinctions (Rodrigues+ 2014)
J/ApJ/809/77 : Transiting Exoplanet Survey Satellite (Sullivan+, 2015)
J/MNRAS/456/2260 : K2 Variability Catalogue II (Armstrong+, 2016)
J/ApJ/827/50 : Kepler faint red giants (Mathur+, 2016)
J/A+A/588/A87 : Seismic global parameters of 6111 KIC (Vrard+, 2016)
J/A+A/597/A30 : Seismology & sp. of CoRoGEE red giants (Anders+, 2017)
J/ApJ/844/102 : KIC parallaxes from asteroseismology vs Gaia (Huber+, 2017)
J/ApJ/835/83 : K2 GAP data release. I. Campaign 1 (Stello+, 2017)
J/A+A/618/A109 : Seismic global parameters of 372 KIC (Mosser+, 2018)
J/ApJS/239/32 : APOKASC-2 cat. of Kepler evolved stars (Pinsonneault+, 2018)
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/MNRAS/485/5616 : Red giant solar-like oscillations in Kepler (Hon+, 2019)
J/ApJS/241/12 : Asteroseismic Target List (ATL) for TESS (Schofield+, 2019)
J/AJ/160/108 : Gaia-Kepler stellar data cat. II. Planets (Berger+, 2020)
J/ApJ/889/L34 : Oscillations in red giants from TESS data (Silva+, 2020)
J/ApJS/251/23 : K2 GAP DR2: campaigns 4, 6 & 7 (Zinn+, 2020)
J/A+A/645/A85 : Age dissection of the Milky Way discs (Miglio+, 2021)
J/AJ/164/135 : Red giants fundamental asteroseismic parameters (Hon+, 2022)
http://archive.stsci.edu/hlsp/qlp : TESS LCs from the MIT Quick-Look Pipeline
http://tess.mit.edu/qlp/ : MIT's Quick-Look Pipeline (QLP) home page
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 9 I9 --- TIC [1078/471010941] TESS identifier
11- 15 F5.1 uHz numax [5.5/244] Frequency at maximum power
17- 20 F4.1 uHz e_numax [0.4/20] Frequency at maximum power uncertainty
22- 25 F4.1 mag Tmag [1.9/14] TESS magnitude
27- 30 I4 K Teff [2959/5896] Surface temperature
32- 34 I3 K e_Teff [59/117] Surface temperature uncertainty
36- 39 F4.1 Rsun Rstar [3.4/38] Stellar radius
41- 46 F6.1 Rsun e_Rstar [0.1/1771] Stellar radius uncertainty
48- 52 F5.1 Lsun Lstar [5.3/290] Luminosity
54- 61 F8.1 Lsun e_Lstar [0.2/992942] Luminosity uncertainty
63- 68 F6.3 kpc Dist [0.03/10.4] Distance
70- 74 F5.3 kpc e_Dist [0/2] Distance uncertainty
76- 80 F5.2 --- RUWE [0.5/42] Gaia DR3 re-normalized unit weight error
82 I1 --- Flag [0/1] Flag indicating normal or unusual scaling
mass (1)
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Note (1): Flag indicating if the mass derived from Equation 1 is typical
(Flag=1) or outlier (Flag=0) where typical and outlier are described
in Section 5.1.
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History:
From electronic version of the journal
(End) Prepared by [AAS], Emmanuelle Perret [CDS] 02-Feb-2023