J/A+A/567/A1 BVJH photometry of Andrews-Lindsay 1 field (Majaess+, 2014)
On the crucial cluster Andrews-Lindsay 1 and a 4% distance solution for its
planetary nebula.
Majaess D., Carraro G., Moni Bidin C., Bonatto C., Turner D., Moyano M.,
Berdnikov L., Giorgi E.
<Astron. Astrophys. 567, A1 (2014)>
=2014A&A...567A...1M 2014A&A...567A...1M
ADC_Keywords: Clusters, open ; Planetary nebulae ; Photometry
Keywords: open clusters and associations: individual: Andrews-Lindsay 1
(ESO 96-SC04) - planetary nebulae: individual: PHR 1315-6555
Abstract:
Andrews-Lindsay 1 is a pertinent open cluster because it may host the
planetary nebula (PN) PHR 1315-6555, yet ambiguities linger concerning
its fundamental parameters (>50% scatter). New multiband BVJHW1-4
photometry for cluster and field stars, in concert with observations
of recently discovered classical Cepheids, were used to constrain the
reddening and velocity-distance profiles along the sightline. That
analysis yielded the following parameters for the cluster:
E(J-H)=0.24±0.03, d=10.0±0.4kpc (dJH=9.9±0.6kpc,
dBV=10.1±0.5kpc), and logτ=8.90±0.15. The steep
velocity-distance gradient along l∼305° indicates that two remote
objects sharing spatial and kinematic parameters (i.e., PHR 1315-6555
and Andrews-Lindsay 1) are associated, thus confirming claims that the
PN is a cluster member. The new distance for PHR 1315-6555 is among
the most precise established yet for a Galactic PN (σ/d=4%).
Objects:
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RA (2000) DE Designation(s)
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13 15 16.0 -65 55 16 Andrews-Lindsay 1 = [AL67] Cl* 1
13 15 18.8 -65 55 00 PHR J1315-6555 = PN G305.3-03.1
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
bv_al1.dat 45 13677 New shallow BV photometry for the field
encompassing Andrews-Lindsay 1 from the
CTIO 1-m telescope (Cerro Tololo, Chile)
nir_al1.dat 45 811 New JH photometry sampling the core of
Andrews-Lindsay 1 from the SOAR 4-m telescope
(Cerro Pachin, Chile)
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See also:
J/A+A/561/A119 : Spectra of stars and planetary nebulae (Moni Bidin+, 2014)
Byte-by-byte Description of file: bv_al1.dat
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Bytes Format Units Label Explanations
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1- 9 F9.5 deg RAdeg Right ascension (J2000)
11- 19 F9.5 deg DEdeg Declination (J2000)
21- 26 F6.3 mag Vmag V magnitude
28- 32 F5.3 mag e_Vmag rms uncertainty on Vmag
34- 39 F6.3 mag B-V B-V colour index
41- 45 F5.3 mag e_B-V rms uncertainty on B-V
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Byte-by-byte Description of file: nir_al1.dat
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Bytes Format Units Label Explanations
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1- 9 F9.5 deg RAdeg Right ascension (J2000)
11- 19 F9.5 deg DEdeg Declination (J2000)
21- 26 F6.3 mag Jmag J magnitude
28- 32 F5.3 mag e_Jmag rms uncertainty on Jmag
34- 39 F6.3 mag J-H J-H colour index
41- 45 F5.3 mag e_J-H rms uncertainty on J-H
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Acknowledgements:
Danel Majaess, dmajaess(at)ns.sympatico.ca
(End) Patricia Vannier [CDS] 18-Jul-2014