J/MNRAS/405/1349 LMC PNe [OIII] 5007Å and Hβ flux (Reid+, 2010)
A new population of planetary nebulae discovered in the Large Magellanic Cloud.
III. The luminosity function.
Reid W.A., Parker Q.A.
<Mon. Not. R. Astron. Soc., 405, 1349-1374 (2010)>
=2010MNRAS.405.1349R 2010MNRAS.405.1349R
ADC_Keywords: Magellanic Clouds ; Planetary nebulae ; Spectroscopy
Keywords: surveys - planetary nebulae: general -
galaxies: luminosity function, mass function - Magellanic Clouds
Abstract:
Our previous identification and spectroscopic confirmation of 431
faint, new planetary nebulae (PNe) in the central 25deg2 region of
the Large Magellanic Cloud (LMC) permit us to now examine the shape of
the LMC planetary nebula luminosity function (PNLF) through an
unprecedented 10mag range. The majority of our newly discovered and
previously known PNe were observed using the 2dF, multi-object fibre
spectroscopy system on the 3.9-m Anglo-Australian Telescope and the
FLAMES multi-object spectrograph on the 8-m Very Large Telescope. We
present reliable [OIII] 5007Å and Hβ flux estimates based on
calibrations to well-established PN fluxes from previous surveys and
spectroscopic standard stars.
Description:
A five night observing run on the Anglo-Australian Telescope (AAT)
using 2dF was undertaken in 2004 December to spectroscopically confirm
LMC emission candidates as PNe and to eliminate contaminants such as
HII regions and emission-line stars.
The observations provided ∼4000 spectra. Individual exposure times
were mostly 1200s using the 300B grating with a central wavelength of
5852Å and a wavelength range of 3600-8000Å at a dispersion of
4.30Å/pix.
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
tablea1.dat 60 164 A compendium of Hβ and [OIII]5007Å raw
flux estimates for LMC PNe
tablea2.dat 49 413 A compendium of Hβ and [OIII]5007Å raw
flux estimates for Reid & Parker PNe in the LMC
(RP PNe -- see J/MNRAS/365/401 + J/MNRAS/373/521)
--------------------------------------------------------------------------------
See also:
J/MNRAS/365/401 : New planetary nebulae in LMC (Reid+, 2006)
J/MNRAS/373/521 : Complete catalog of planetary nebulae in LMC (Reid+, 2006)
Byte-by-byte Description of file: tablea1.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 4 I4 --- [RP2006] Sequential number
6- 19 A14 --- Name Common nomenclature (1)
21- 24 F4.2 --- c(Hb) Extinction constant
(logarithmic extinction at Hbeta)
26- 33 E8.3 mW/m2 FHb Flux Hβ 4861Å (erg/cm2/s)
35- 41 E7.2 mW/m2 e_FHb rms uncertainty on FHb
43- 50 E8.3 mW/m2 F[OIII] Flux [OIII] 5007Å (erg/cm2/s)
52- 59 E8.2 mW/m2 e_F[OIII] rms uncertainty on FH[OIII]
60 A1 --- n_F[OIII] [a] flux measured directly from long-slit spectra
--------------------------------------------------------------------------------
Note (1): Explanation of abbreviations used:
J = Jacoby (1980ApJS...42....1J 1980ApJS...42....1J)
LM2 = Lindsay & Mullan (1963IrAJ....6...51L 1963IrAJ....6...51L)
MG = Morgan & Good (1992A&AS...92..571M 1992A&AS...92..571M)
Mo = Morgan (1994A&AS..103..235M 1994A&AS..103..235M)
N = Henize (1956ApJS....2..315H 1956ApJS....2..315H)
SMP = Sanduleak, MacConnell & Davis Philip (1978PASP...90..621S 1978PASP...90..621S)
Sa = Sanduleak (1984IAUS..108..231S 1984IAUS..108..231S)
WS = Westerlund & Smith (1964MNRAS.127..449W 1964MNRAS.127..449W)
--------------------------------------------------------------------------------
Byte-by-byte Description of file: tablea2.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 4 I4 --- [RP2006] Sequential number
6 A1 --- st [TLP] True, Likely or Possible status (1)
8- 11 F4.2 --- c(Hb) ?=- Logarithmic extinction at Hβ (2)
12 A1 --- n_c(Hb) [b] Extremely high Hα/Hβ (2)
14- 21 E8.3 mW/m2 FHb ?=- Flux Hβ 4861Å (erg/cm2/s)
23- 30 E8.3 mW/m2 e_FHb ?=- rms uncertainty on FHb
32- 39 E8.3 mW/m2 F[OIII] Flux [OIII] 5007Å (erg/cm2/s)
41- 48 E8.2 mW/m2 e_F[OIII] rms uncertainty on FH[OIII]
49 A1 --- n_F[OIII] [a] a: A flux measured directly from
long-slit spectra
--------------------------------------------------------------------------------
Note (1): A detailed review of T, L and P is given in Reid & Parker 2006,
Cat. J/MNRAS/373/521
Note (2): Extinction at Hβ defined in Eq.(1) of section 3.3:
c(Hβ) = [log(Hα/Hβ - log(2.86)] / 0.34
PNe marked 'b' with extremely high Hα/Hβ>10 ratios may have
been affected by power-law photoionization or shock-heating (see Sec. 3.3)
--------------------------------------------------------------------------------
History:
From electronic version of the journal
References:
Reid & Parker, Paper I 2006MNRAS.365..401R 2006MNRAS.365..401R, Cat. J/MNRAS/365/401
Reid & Parker, Paper II 2006MNRAS.373..521R 2006MNRAS.373..521R, Cat. J/MNRAS/373/521
(End) Patricia Vannier [CDS] 10-Dec-2010