J/AJ/165/137 Light curve and observed properties in M33 (Ou+, 2023)
A Distance Measurement to M33 Using Optical Photometry of Mira Variables.
Ou J.-Y., Ngeow C.-C., Bhardwaj A., Graham M.J., Laher R.R., Masci F.J.,
Riddle R.
<Astron. J., 165, 137 (2023)>
=2023AJ....165..137O 2023AJ....165..137O
ADC_Keywords: Stars, variable; Photometry, VRI
Keywords: Mira variable stars ; Asymptotic giant branch stars
Abstract:
We present a systematic analysis to determine and improve the
pulsation periods of 1637 known long-period Mira variables in M33
using gri-band light curves spanning ∼18yr from several surveys,
including the M33 variability survey, Panoramic Survey Telescope and
Rapid Response System, Palomar Transient Factory (PTF), intermediate
PTF, and Zwicky Transient Facility. Based on these collections of
light curves, we found that optical-band light curves that are as
complete as possible are crucial to determine the periods of distant
Miras. We demonstrated that the machine-learning techniques can be
used to classify Miras into O-rich and C-rich based on the (J-Ks)
period-color plane. Finally, We derived the distance modulus to M33
using O-rich Miras at maximum light together with our improved periods
as 24.67±0.06mag, which is in good agreement with the recommended
value given in the literature.
Description:
In this work, we aimed to derive the distance to M33 using Mira
variables. We started by redetermining the pulsating periods for 1378
Miras in M33 using available gri-band light curves.
Objects:
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RA (2000) DE Designation(s)
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01 33 50.89 +30 39 36.6 M33 = 1AXG J013351+3039
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 53 199063 Light curve data of Miras in M33
table2.dat 120 1366 Observed properties of Miras in M33
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See also:
J/A+A/377/945 : Variability and spectra of LMC giants (Cioni+ 2001)
J/AJ/128/224 : VI photometry in M33 outer regions (Tiede+, 2004)
J/MNRAS/371/1405 : Variables in M33 (Hartman+, 2006)
J/MNRAS/386/313 : IR observations of Mira variables (Whitelock+, 2008)
J/AcA/59/239 : VI light curves oMC long-period variables (Soszynski+, 2009)
J/ApJ/723/1195 : SAGE AGB candidates (Riebel+, 2010)
J/ApJS/193/26 : The M33 synoptic stellar survey. I. (Pellerin+, 2011)
J/ApJ/758/11 : Bayesian distances to M31 satellites (Conn+, 2012)
J/ApJ/750/99 : The Pan-STARRS1 photometric system (Tonry+, 2012)
J/AJ/151/88 : LMC NIR Synoptic Survey II Wesenheit relat (Bhardwaj+, 2016)
J/AJ/153/170 : M33 Synoptic Stellar Survey II. Mira variables (Yuan+, 2017)
J/AJ/154/149 : LMC NIR synoptic survey. V. NIR photo of Miras (Yuan+, 2017)
J/AJ/156/112 : NIR Mira period-luminosity relations in M33 (Yuan+, 2018)
J/ApJ/884/20 : OGLE-III Mira variables Magellanic Clouds (Bhardwaj+, 2019)
J/ApJ/919/99 : WISE & Spitzer obs. of OGLE Miras in the LMC (Iwanek+, 2021)
J/ApJS/257/23 : Multiwavelength obs. of Miras in the LMC (Iwanek+, 2021)
J/ApJ/911/51 : 1894-2020 opt-to-NIR photometry of HO Puppis (Lee+, 2021)
J/AJ/163/192 : 807 Mira variable stars photo Magellanic Clouds (Ou+, 2022)
J/ApJS/260/41 : Dust extinction law in nearby galaxies.II. M33 (Wang+, 2022)
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Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 16 A16 --- ID Mira ID
18- 18 A1 --- Filt Filter (gri)
20- 31 F12.6 d MJD [52873/59551] Modified Julian Date of
Observation; JD-2400000.5
33- 37 F5.2 mag omag [15.1/31.4] Observed magnitude in Filter
39- 44 F6.2 mag e_omag ?=-99 Error of the magnitude
46- 53 A8 --- r_omag Reference of the data (1)
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Note (1): References as follows:
HBS2006 = Hartman+, 2006, J/MNRAS/371/1405 MegaCam/CFHT gri survey
PTF/iPTF = Palomar Transit Factory,
Law+, 2009PASP..121.1395L 2009PASP..121.1395L,
Rau+, 2009PASP..121.1334R 2009PASP..121.1334R,
intermediate PTF,
Kulkarni+, 2013ATel.4807....1K 2013ATel.4807....1K
Ps = Pan-STARRS DR2,
Kaiser+, 2010SPIE.7733E..0EK,
Chambers+, 2016arXiv161205560C 2016arXiv161205560C
ZTF = Zwicky Transient Facility (ZTF), 2019PASP..131a8002B 2019PASP..131a8002B
Dekany+, 2020PASP..132c8001D 2020PASP..132c8001D,
Graham+, 2019PASP..131g8001G 2019PASP..131g8001G
Masci+, 2019PASP..131a8003M 2019PASP..131a8003M
Data Release 10 and the ZTF collaboration survey data.
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 16 A16 --- ID MIRA ID
18- 23 F6.1 d Per [103/1022] Period of Mira
25- 30 F6.2 d e_Per [0.01/64] Period error
32- 32 A1 --- SpT Spectra type of Mira
34- 39 F6.2 mag imag [-99.0/24.0]?=-99 i magnitude at mean light
41- 44 F4.2 mag e_imag [0.01/3.04] error of i magnitude at mean light
46- 51 F6.2 mag imax [-99.0/22.15] i magnitude at maximum light
53- 58 F6.2 mag e_imax [0.01/2.79]?=-99 error of i magnitude at maximum
light
60- 65 F6.2 mag rmag [19.23/28.1]?=-99 r magnitude at mean light
67- 72 F6.2 mag e_rmag [0.01/10.05]?=-99 error of r magnitude at mean
light
74- 79 F6.2 mag rmax [8.5/24.32]?=-99 r magnitude at maximum light
81- 86 F6.2 mag e_rmax [0.01/4.31]?=-99 error of r magnitude at
maximum light
88- 93 F6.2 mag gmag [19.68/30.48]?=-99 g magnitude at mean light
95-100 F6.2 mag e_gmag [0.01/10.06]?=-99 error of g magnitude at mean
light
102-107 F6.2 mag gmax [3.85/24.81]?=-99 g magnitude at maximum light
109-114 F6.2 mag e_gmax [0.01/7.83]?=-99 error of g magnitude at
maximum light
116-120 F5.3 mag E(B-V) [0.041/0.054] Reddening, E(B-V)
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History:
From electronic version of the journal
(End) Prepared by [AAS], Coralie Fix [CDS], 03-Jul-2023