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J/PASP/132/J4401 YSOs detection with W filter (Allers+, 2020)
The following files can be converted to FITS (extension .fit or fit.gz)
table3.dat table4.dat table5.dat table6.dat
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Query from: http://vizier.cds.unistra.fr/viz-bin/VizieR?-source=J/PASP/132/J4401
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-r--r--r-- 1 cats archive 3726 Feb 24 2021 table3.dat [txt] [txt.gz] [fits] [fits.gz] [html]
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-r--r--r-- 1 cats archive 5568 Feb 24 2021 table5.dat [txt] [txt.gz] [fits] [fits.gz] [html]
-r--r--r-- 1 cats archive 5907 Feb 24 2021 table6.dat [txt] [txt.gz] [fits] [fits.gz] [html]
Beginning of ReadMe :J/PASP/132/J4401 YSOs detection with W filter (Allers+, 2020)
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A novel survey for young substellar objects with the W-band filter.
I. Filter design and new discoveries in Ophiuchus and Perseus.
Allers K.N., Liu M.C.
<Publ. Astron. Soc. Pac., 132, j4401 (2020)>
=2020PASP..132j4401A (SIMBAD/NED BibCode)
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ADC_Keywords: Clusters, open ; Photometry, infrared ; YSOs
Abstract:
We present the design and implementation of a medium-band near-IR
filter tailored for detecting low-mass stars and brown dwarfs from the
summit of Maunakea. The W-band filter is centered at 1.45mum with a
bandpass width of 6%, designed to measure the depth of the H_2_O water
absorption prominent in objects with spectral types of M6 and later.
When combined with standard J and H photometry, the W-band filter is
designed to determine spectral types to =1.4 subtypes for late-M and
L dwarfs, largely independent of surface gravity and reddening. This
filter's primary application is completing the census of young
substellar objects in star-forming regions, using W-band selection to
greatly reduce contamination by reddened background stars that impede
broad-band imaging surveys. We deployed the filter on the UH 88 inch
telescope to survey 3 degree^2^ of the NGC 1333, IC 348, and rho
Ophiuchus star-forming regions. Our spectroscopic followup of W-band
selected candidates resulted in the confirmation of 48 ultracool
dwarfs with a success rate of 89%, demonstrating the efficacy of this
new filter and selection method.
Description:
To search for brown dwarfs in star-forming regions, we have designed
the W-band filter, a medium-bandpass filter centered at 1.45um. Our
W-band filter can be combined with broad-band J and H photometry to
create a reddening-insensitive index, Q.
We tested the efficacy of our filter by selecting candidate young
brown dwarfs based only on their Q values. Using SpeX, we
spectroscopically confirm 48/60 objects as having spectral types of M5
and later. If we include objects that met our selection criteria but
were already spectroscopically confirmed prior to our SpeX
observations, our confirmation rate is 95/107.