J/PASP/124/140 UBVRI Hp BT and VT photonic responses (Bessell+, 2012)
Spectrophotometric libraries, revised photonic passbands, and zero points for
UBVRI, Hipparcos, and Tycho photometry.
Bessell M., Murphy S.
<Publ. Astron. Soc. Pac., 124, 140-157 (2012)>
=2012PASP..124..140B 2012PASP..124..140B
ADC_Keywords: Photometry, sensitivity functions ; Photometry, UBVRI
Keywords: stars
Abstract:
We have calculated improved photonic passbands for the UBVRI,
Hipparcos Hp, and Tycho BT and VT standard systems using the extensive
spectrophotometric libraries of NGSL and MILES. Using the Hp passband,
we adjusted the absolute flux levels of stars in the
spectrophotometric libraries so that their synthetic Hp magnitudes
matched the precise Hipparcos Catalogue value. Synthetic photometry
based on the renormalized fluxes was compared with the standard UBVRI,
BT and VT magnitudes, and revised synthetic zero points were
determined. The Hipparcos and Tycho photometry system zero points were
also compared with the V-magnitude zero points of the SAAO UBVRI
system, the homogenized UBV system, and the Walraven VB system.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 54 37 Normalized UBVRI photonic responses
table2.dat 32 56 Normalized Hp BT, and VT photonic responses
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See also:
I/239 : The Hipparcos and Tycho Catalogues (ESA 1997)
J/AJ/140/1919 : Zero point spectral energy distribution (Engelke+, 2010)
J/PASP/120/1128 : Calibrated griz magnitudes of Tycho star (Ofek, 2008)
Byte-by-byte Description of file:table1.dat
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Bytes Format Units Label Explanations
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1- 4 I4 0.1nm lam.U ? Wavelenght in U
6- 10 F5.3 --- U ? Normalized response in U
12- 15 I4 0.1nm lam.B ? Wavelenght in B
17- 21 F5.3 --- B ? Normalized response in B
23- 26 I4 0.1nm lam.V ? Wavelenght in V
28- 32 F5.3 --- V ? Normalized response in V
34- 37 I4 0.1nm lam.R ? Wavelenght in R
39- 43 F5.3 --- R ? Normalized response in R
45- 48 I4 0.1nm lam.I ? Wavelenght in I
50- 54 F5.3 --- I ? Normalized response in I
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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- 4 I4 0.1nm lam.Hp ? Wavelenght in Hp
6- 10 F5.3 --- Hp ? Normalized response in Hp
12- 15 I4 0.1nm lam.BT ? Wavelenght in BT
17- 21 F5.3 --- BT ? Normalized response in BT
23- 26 I4 0.1nm lam.VT ? Wavelenght in VT
28- 32 F5.3 --- VT ? Normalized response in VT
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 11-Feb-2013