2025RNAAS...9..228L

Query : 2025RNAAS...9..228L

2025RNAAS...9..228L - Research Notes of the AAS, 9, 228 (2025/August-0)

TESS Data do not Confirm Gravity Modes in the RR Lyrae Star HH Puppis.

LOVE T.

Abstract (from CDS):

A recent study found pulsation frequencies in the RR Lyrae star HH Puppis that were identified as gravity modes, and argued that this phenomenon could explain the Blazhko effect in which pulsations of RR Lyrae stars undergo long term changes in amplitude and phase. The study used ground-based photometry that observed HH Puppis continuously over 136 days. I analysed TESS photometry of both 120 and 200 s cadences and utilised two different software packages for analysis. I do not detect the g-mode frequencies found in the ground-based data set. This casts doubt upon the claim that gravity modes have been observed in an RR Lyrae star.

Abstract Copyright: © 2025. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Asteroseismology - RR Lyrae variable stars

Simbad objects: 1

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Number of rows : 1
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 V* HH Pup RR* 07 20 35.5562195569 -46 42 30.091727783   11.52 11.31 11.49   A3II/III 94 0

Query : 2025RNAAS...9..228L

Basic data :
V* HH Pup -- RR Lyrae Variable
Other object types: otypes_help 		* (CD,CPD,...), RR* (2014MNRAS), V* (ASAS,CSV,...), MIR (WISEA,WISE), NIR (2MASS)
ICRS coord. (ep=J2000) : 		07 20 35.5562195569 -46 42 30.091727783 (Optical) [ 0.0133 0.0145 90 ] A 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		07 19 08.3625581716 -46 36 47.885930326 [ 0.0133 0.0145 90 ]
Gal coord. (ep=J2000) : 		258.2375492559963 -14.7423868864876 [ 0.0133 0.0145 90 ]
Proper motions mas/yr : 		3.976 0.671 [0.019 0.019 90] A 2020yCat.1350....0G
Radial velocity / Redshift / cz : 		V(km/s) 18.59 [0.21] / z(~) 0.000062 [0.000001] / cz 18.59 [0.21]
   (Opt) A 2021ApJ...919...85B
Parallaxes (mas): 		1.1142 [0.0151] A 2020yCat.1350....0G
Spectral type: 		A3II/III C 1972POAN....2...59S
Fluxes (7) :
B 11.52 [0.08] D 2000A&A...355L..27H
V 11.31 [0.10] D 2000A&A...355L..27H
R 11.49 [0.06] E 2012yCat.1322....0Z
G 11.343765 [0.014373] C 2020yCat.1350....0G
J 10.495 [0.023] C 2003yCat.2246....0C
H 10.255 [0.022] C 2003yCat.2246....0C
K 10.166 [0.021] C 2003yCat.2246....0C
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Hierarchy : number of linked objects
whatever the membership probability is (see description here ) :

: 1 : 4428 Display criteria :

Identifiers (23) :
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CD-46 3086 GEN# -0.04603086 TIC 59759791 WISEA J072035.55-464230.1
ASAS J072036-4642.5 HIC 35584 TYC 8120-896-1 WISE J072035.56-464230.1
CPD-46 1400 HIP 35584 UCAC2 11698907 Gaia DR3 5510293236607430656
CRTS J072035.3-464232 2MASS J07203555-4642301 UCAC3 87-29059 Gaia DR1 5510293232308723712
CSV 1029 SOPS III a-135 UCAC4 217-012722 Gaia DR2 5510293236607430656
GCRV 58704 SV* SON 4879 V* HH Pup

References (94 between 1850 and 2026) (Total 94)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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Collections of Measurements Description of Measurements

Velocities : 3    Distance : 2    Var : 4    Fe/H : 4    Plx : 5    PM : 4   

   

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CD-46 3086 CPD-46 1400 HIC 35584 HIP 35584 2MASS J07203555-4642301
TYC 8120-896-1 UCAC2 11698907 UCAC3 87-29059 UCAC4 217-012722 V* HH Pup
WISEA J072035.55-464230.1 WISE J072035.56-464230.1 Gaia DR3 5510293236607430656 Gaia DR1 5510293232308723712 Gaia DR2 5510293236607430656

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