J/A+A/604/A29 MC Type II and anomalous Cepheids PL and PR (Groenewegen+, 2017)
The period-luminosity and period-radius relations of Type II and anomalous
Cepheids in the Large and Small Magellanic Clouds.
Groenewegen M.A.T., Jurkovic M.
<Astron. Astrophys. 604, A29 (2017)>
=2017A&A...604A..29G 2017A&A...604A..29G (SIMBAD/NED BibCode)
ADC_Keywords: Magellanic Clouds ; Stars, variable
Keywords: stars: variables: Cepheids - stars: fundamental parameters -
Magellanic Clouds
Abstract:
Type II Cepheids (T2Cs) and anomalous Cepheids (ACs) are pulsating
stars that follow separate period-luminosity relations.
We study the period-luminosity (PL) and period-radius (PR) relations
for T2Cs and ACs in the Magellanic Clouds.
In an accompanying paper we determined luminosity and effective
temperature for the 335 T2Cs and ACs in the LMC and SMC discovered in
the OGLE-III survey, by constructing the spectral energy distribution
(SED) and fitting this with model atmospheres and a dust radiative
transfer model (in the case of dust excess). Building on these results
we study the PL- and PR relations. Using existing pulsation models for
RR Lyrae and classical Cepheids we derive the
period-luminosity-mass-temperature-metallicity relations, and then
estimate the pulsation mass.
Description:
The luminosities and effective temperatures derived in GJ17 for 335
T2Cs and ACs in the SMC and LMC were used to study the
period-Wesenheit, and for the first time to our knowledge in the 21st
Century, the period-bolometric luminosity and PR relations for these
classes of stars.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table3.dat 75 333 Basic parameters and stellar masses
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See also:
J/AcA/58/293 : Type-II and anomalous Cepheids in LMC (Soszynski+, 2008)
J/ApJ/679/71 : Mid-IR period-luminosity relations (Freedman+, 2008)
J/MNRAS/397/933 : LMC type II Cepheids JHKs magnitudes (Matsunaga+, 2009)
J/AcA/60/91 : VI light curves of SMC type II Cepheids (Soszynski+, 2010)
J/MNRAS/437/2307 : LMC anomalous Cepheid Ks light curves (Ripepi+, 2014)
J/AcA/65/233 : OGLE Magellanic Clouds anomalous Cepheids (Soszynski+, 2015)
J/MNRAS/446/3034 : LMC Type II Cepheids J and Ks light curves (Ripepi+, 2015)
Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 18 A18 --- Name OGLE-III Identifier (1)
20- 24 A5 --- Sub-type Sub-type of variability (2)
27- 31 F5.2 d Per Pulsation period
33- 37 F5.2 Rsun R Radius
39- 43 F5.2 Rsun e_R Error in the radius
45- 49 F5.3 Msun MCep Pulsation mass based on the Cepheid
pulsation models
51- 55 F5.3 Msun e_MCep Error in the pulsation mass
57- 61 F5.3 Msun MRRL Pulsation mass based on the RR Lyrae
pulsation models
63- 67 F5.3 Msun e_MRRL Error in the pulsation mass
69 I1 --- Dusty [0/1] Has the star an infrared excess;
yes (1), or no (0)
71 I1 --- Binary [0/1] Has the star been classified as a
binary; yes (1), or no (0)
74- 75 A2 --- Agree [OK ok] Do the Cepheid and RR Lyrae
pulsation masses agree? (3)
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Note (1): OGLE-SMC-ANCEP-NN refers to OGLE III.
OGLE SMC-ANCEP-01 = OGLE SMC-ACEP-32 (OGLE IV)
OGLE SMC-ANCEP-02 = OGLE SMC-ACEP-41 (OGLE IV)
OGLE SMC-ANCEP-03 = OGLE SMC-ACEP-57 (OGLE IV)
OGLE SMC-ANCEP-04 = OGLE SMC-ACEP-62 (OGLE IV)
OGLE SMC-ANCEP-05 = OGLE SMC-ACEP-68 (OGLE IV)
OGLE SMC-ANCEP-06 = OGLE SMC-ACEP-81 (OGLE IV)
All other names are the same in OGLE III and OGLE IV.
Note (2): F or 1O for ANCEP; RVTau, BLHer, WVir, pWVir for T2CEP.
Note (3): Agree flag as follows:
OK = yes, within the respective errors bars
ok = yes, within 15%
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Acknowledgements:
Martin Groenewegen, martin.groenewegen(at)oma.be
(End) Patricia Vannier [CDS] 15-May-2017