J/ApJ/911/12 HST opt-NIR obs. of Cepheids in NGC5584 (Javanmardi+, 2021)
Inspecting the Cepheid distance ladder: the Hubble Space Telescope distance to
the SN Ia host galaxy NGC 5584.
Javanmardi B., Merand A., Kervella P., Breuval L., Gallenne A., Nardetto N.,
Gieren W., Pietrzynski G., Hocde V., Borgniet S.
<Astrophys. J., 911, 12 (2021)>
=2021ApJ...911...12J 2021ApJ...911...12J
ADC_Keywords: Photometry, HST; Photometry, UBVRI; Stars, variable;
Galaxies, nearby; Supernovae
Keywords: Observational cosmology ; Cosmological parameters ; Hubble constant ;
Cepheid distance ; Galaxies ; Type Ia supernovae ;
Variable stars ; Photometry ; Light curves ; Stellar photometry ;
Astronomy data analysis ; Galaxy distances
Abstract:
The current tension between the direct and the early-universe
measurements of the Hubble constant, H0, requires detailed scrutiny
of all the data and methods used in the studies on both sides of the
debate. The Cepheids in the Type Ia supernova (SN Ia) host galaxy
NGC5584 played a key role in the local measurement of H0. The SH0ES
(Supernovae H0 for the Equation of State) project used the
observations of this galaxy to derive a relation between the Cepheids'
periods and ratios of their amplitudes in different optical bands of
the Hubble Space Telescope and used these relations to analyze the
light curves of the Cepheids in around half of the current sample of
local SN Ia host galaxies. In this work, we present an independent
detailed analysis of the Cepheids in NGC5584. We employ different
tools for our photometric analysis and a completely different method
for our light-curve analysis, and we do not find a systematic
difference between our period and mean magnitude measurements compared
to those reported by SH0ES. By adopting a period-luminosity relation
calibrated by the Cepheids in the Milky Way, we measure a distance
modulus µ=31.810±0.047 (mag), which is in agreement with
µ=31.786±0.046 (mag) measured by SH0ES. In addition, the
relations we find between the periods and amplitude ratios of the
Cepheids in NGC5584 are significantly tighter than those of SH0ES, and
their potential impact on the direct H0 measurement will be
investigated in future studies.
Description:
We obtain the data of NGC 5584 from the Mikulski Archive for Space
Telescopes (MAST) database. NGC 5584 has been observed by the Wide
Field Camera 3 (WFC3) between 2010 January and April with the purpose
of measuring a Cepheid distance to the SN Ia SN 2007af hosted by this
galaxy (PI: Adam Riess, Cycle: 17, Proposal ID: 11570).
NGC 5584 has been observed in 13 epochs (in total 45540s) in the F555W
band, 6 of which are also accompanied by F814W observations (in total
14400s). In 12 of these epochs, this galaxy has also been observed in
the F350LP band (in total 15000sc). In addition, NGC 5584 has also
been observed with the WFC3/IR channel with the F160W or the H band in
two epochs (in total 4929s).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 94 199 Our measurements for the photometric properties
of the Cepheids in NGC 5584
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See also:
B/hst : HST Archived Exposures Catalog (STScI, 2007)
J/AJ/128/2815 : ARAUCARIA project: NGC 6822 Cepheid var. (Pietrzynski+, 2004)
J/ApJ/627/579 : Photometry of variables in NGC 3370 (Riess+, 2005)
J/AcA/58/163 : VI light curves of LMC classical Cepheids (Soszynski+, 2008)
J/ApJ/699/539 : Cepheids in SN-Ia host galaxies (Riess+, 2009)
J/ApJ/738/27 : Galactic HII regions RRL and continuum data (Balser+, 2011)
J/AJ/149/117 : LMC infrared survey. I. Photometry of Cepheids (Macri+, 2015)
J/A+A/584/A80 : Pulsation model data for delta Cep and eta Aql (Merand+, 2015)
J/ApJ/830/10 : >20yrs of HST obs. of Cepheids (Hoffmann+, 2016)
J/ApJ/826/56 : HST/WFC3 obs. of Cepheids in SN Ia host gal. (Riess+, 2016)
J/A+A/605/A79 : TGAS Cepheids and RR Lyrae stars (Gaia Collaboration+, 2017)
J/ApJ/869/56 : Updated calibration of the CSP-I SNe Ia sample (Burns+, 2018)
J/A+A/620/A99 : SMC Cepheids K-band and RV curves (Gieren+, 2018)
J/A+A/619/A8 : Cepheid period-luminosity-metallicity (Groenewegen, 2018)
J/ApJ/867/108 : Stellar masses & rest-frame u-g colors of SNIa (Jones+, 2018)
J/A+A/615/A68 : Type Ia supernova luminosities (Roman+, 2018)
J/ApJ/885/161 : 90 cepheid candidates nearby NGC 6814 (Bentz+, 2019)
J/A+A/631/A37 : Classical Cepheids consistent RVs (Borgniet+, 2019)
J/A+A/622/A60 : Gaia DR2 misclassified RR Lyrae list (Clementini+, 2019)
J/A+A/622/A164 : Radial velocity curves of 11 Cepheids (Gallenne+, 2019)
J/A+A/623/A72 : Binarity of HIP stars from Gaia pm anomaly (Kervella+, 2019)
J/A+A/623/A117 : Gal. Cepheids & RR Lyrae multiplicity. II (Kervella+, 2019)
J/ApJ/876/85 : HST observations for LMC Cepheids (Riess+, 2019)
J/A+A/625/A14 : Reclassification of Cepheids in the Gaia DR2 (Ripepi+, 2019)
J/A+A/641/A79 : FEDReD. Extinction map with 2MASS & Gaia DR2 (Hottier+, 2020)
J/ApJ/889/5 : HST obs. of Mira var. in the SNIa host NGC1559 (Huang+, 2020)
J/ApJ/896/L43 : Cepheids HST amplitudes in V- and H-band (Riess+, 2020)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 7 I7 --- ID [82928/1073816] Identifier (1)
9- 16 F8.4 deg RAdeg [215.57/215.62] Right ascension (J2000) (1)
18- 24 F7.4 deg DEdeg [-0.41/-0.36] Declination (J2000) (1)
26- 31 F6.3 mag Umag [25/27.98] HST WFC3/UVIS F350LP band magnitude
33- 37 F5.3 mag e_Umag [0.008/0.12] Uncertainty on F350LP
39- 43 F5.3 mag Uamp [0.15/0.45] F350LP amplitude
45- 50 F6.3 mag Vmag [25.24/28.27] HST WFC3/UVIS F555W band magnitude
52- 56 F5.3 mag e_Vmag [0.01/0.2] Uncertainty on the Vmag
58- 62 F5.3 mag Vamp [0.18/0.5] Vmag amplitude
64- 69 F6.3 mag Imag [24.18/27.23] HST WFC3/UVIS F814W band magnitude
71- 75 F5.3 mag e_Imag [0.009/0.2] Uncertainty on the Imag
77- 81 F5.3 mag Iamp [0.1/0.32] Imag amplitude
83- 88 F6.3 mag Hmag [23.13/26.24]? HST WFC3/IR F160W band magnitude
90- 94 F5.3 mag e_Hmag [0.013/0.3]? Uncertainty on the Hmag
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Note (1): The ID and the coordinates are those of Hoffmann+, 2016, J/ApJ/830/10
(<[HMR2016] N5584 NNNNNNN> in Simbad).
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History:
From electronic version of the journal
(End) Emmanuelle Perret [CDS] 03-Oct-2022