/ftp/cats/aliases/M/./MNK2015



==========================================================================
J/AJ/149/117    LMC infrared survey. I. Photometry of Cepheids    (Macri+, 2015)
The following files can be converted to FITS (extension .fit or fit.gz)
	table2.dat table3.dat table4.dat table5.dat tablea1.dat
==========================================================================
Query from: http://vizier.cds.unistra.fr/viz-bin/VizieR?-source=J/AJ/149/117
==========================================================================

drwxr-xr-x 66 cats archive 4096 Jul 17 2015 [Up] drwxr-xr-x 4 cats archive 4096 Jan 13 2023 [TAR file] -rw-r--r-- 1 cats archive 512 Dec 19 2022 .message -rw-r--r-- 1 cats archive 12601 Jun 15 2018 ReadMe -rw-r--r-- 1 cats archive 1015 May 30 2018 +footg5.gif -rw-r--r-- 1 cats archive 3046 May 30 2018 +footg8.gif -r--r--r-- 1 cats archive 1618935 Apr 21 2015 table2.dat.gz [txt] [txt.gz] [fits] [fits.gz] [html] -r--r--r-- 1 cats archive 116194 Apr 21 2015 table3.dat [txt] [txt.gz] [fits] [fits.gz] [html] -r--r--r-- 1 cats archive 2270 May 20 2015 table4.dat [txt] [txt.gz] [fits] [fits.gz] [html] -r--r--r-- 1 cats archive 5354 May 20 2015 table5.dat [txt] [txt.gz] [fits] [fits.gz] [html] -r--r--r-- 1 cats archive 77542549 Apr 21 2015 tablea1.dat.gz [txt] [txt.gz] [fits] [fits.gz] [html]
Beginning of ReadMe : J/AJ/149/117 LMC infrared survey. I. Photometry of Cepheids (Macri+, 2015) ================================================================================ Large Magellanic Cloud near-infrared synoptic survey. I. Cepheid variables and the calibration of the Leavitt Law. Macri L.M., Ngeow C.-C., Kanbur S.M., Mahzooni S., Smitka M.T. <Astron. J., 149, 117 (2015)> =2015AJ....149..117M ================================================================================ ADC_Keywords: Surveys ; Magellanic Clouds ; Stars, variable ; Photometry, infrared Keywords: distance scale - Magellanic Clouds - stars: variables: Cepheids Abstract: We present observational details and first results of a near-infrared (JHK_s_) synoptic survey of the central region of the Large Magellanic Cloud (LMC) using the CPAPIR camera at the CTIO 1.5m telescope. We covered 18 square degrees to a depth of K_s_ 16.5mag and obtained an average of 16 epochs in each band at any given location. Our catalog contains more than 3.5x10^6^ sources, including 1417 Cepheid variables previously studied at optical wavelengths by the OGLE survey. Our sample of fundamental-mode pulsators represents a nine-fold increase in the number of these variables with time-resolved, multi-band near-infrared photometry. We combine our large Cepheid sample and a recent precise determination of the distance to the LMC to derive a robust absolute calibration of the near-infrared Leavitt Law for fundamental-mode and first-overtone Cepheids with 10x better constraints on the slopes relative to previous work. We also obtain calibrations for the tip of the red giant branch and the red clump based on our ensemble photometry which are in good agreement with previous determinations. Description: Images were acquired using the CPAPIR camera at the 1.5m telescope of the Cerro Tololo Inter-American Observatory, operated by the SMARTS consortium. CPAPIR uses a 2048*2048 Hawaii-2 infrared array detector and delivers an effective plate scale at this telescope of 0.983''/pixel, or a field of view of 0.559deg on a side. We requested observations centered on 49 different positions, with extensive overlap among neighboring fields to enable a robust photometric cross-calibration. Observations were obtained in queue mode on 32 separate nights during three distinct time periods: 2006 November (7 nights), 2007 January (6 nights), and 2007 November (19 nights). Individual fields were targeted on 7-11 nights, often twice on each night, so that every location within our survey area was observed on 14-20 distinct epochs. We requested observations centered on 49 different positions, with extensive overlap among neighboring fields to enable a robust photometric cross-calibration.