The Wide-Field Near Infrared Data: Optimal Photometry in Crowded Fields

Abstract

We present JHK infrared data from the UK Infrared Telescope for a subset of the regions of the MYStIX (Massive Young Star-Forming Complex Study in Infrared and X-ray) survey. Some of the data were obtained specifically for the MYStIX project, and some as part of the UKIRT Infrared Deep Sky Survey's Galactic Plane Survey. In most of these fields crowding is a significant issue for aperture photometry, and so we have re-extracted the photometry from the processed images using an optimal extraction technique, and we describe how we adapt the optimal technique to mitigate the effects of crowding.

13 pages, 5 figures. Accepted for publication in Astrophysical Journal Supplements (with 6 other MYStIX papers). Complete versions of this and other MYStIX papers are available at http://www.astro.psu.edu/mystix

References in corpus (14)

• The UKIRT Infrared Deep Sky Survey (UKIDSS)
• The Dartmouth Stellar Evolution Database
• The UKIDSS Galactic Plane Survey
• The WFCAM Science Archive
• The UKIRT Wide Field Camera ZYJHK Photometric System: Calibration from 2MASS
• The UKIRT Infrared Deep Sky Survey Early Data Release
• From star clusters to dwarf galaxies: The properties of dynamically hot stellar systems
• Identifying Young Stars in Massive Star-Forming Regions for the MYStIX Project
• The Massive Star-forming Regions Omnibus X-ray Catalog
• The MYStIX InfraRed-Excess Source Catalog
• Radiation Transport for Explosive Outflows: A Multigroup Hybrid Monte Carlo Method
• Bayesian Matching for X-ray and Infrared Sources in the MYStIX Project
• A Massive Young Star-Forming Complex Study in Infrared and X-ray: Mid-Infrared Observations and Catalogs
• A Massive Young Star-Forming Complex Study in Infrared and X-ray: X-ray Sources in Ten Star Forming Regions

Cited by in corpus (25)

• The Spatial Structure of Young Stellar Clusters. I. Subclusters
• Overview of the Massive Young Star-Forming Complex Study in Infrared and X-ray (MYStIX) Project
• Identifying Young Stars in Massive Star-Forming Regions for the MYStIX Project
• The Massive Star-forming Regions Omnibus X-ray Catalog
• Age Gradients in the Stellar Populations of Massive Star Forming Regions Based on a New Stellar Chronometer
• The MYStIX InfraRed-Excess Source Catalog
• The Spatial Structure of Young Stellar Clusters. II. Total Young Stellar Populations
• Determining the recurrence timescale of long-lasting YSO outbursts
• Star Formation In Nearby Clouds (SFiNCs): X-ray And Infrared Source Catalogs And Membership
• The Spatial Structure of Young Stellar Clusters. III. Physical Properties and Evolutionary States
• Bayesian Matching for X-ray and Infrared Sources in the MYStIX Project
• Testing the role of environmental effects on the initial mass function of low-mass stars
• Rapid Circumstellar Disk Evolution and an Accelerating Star Formation Rate in the Infrared Dark Cloud M17 SWex
• A Massive Young Star-Forming Complex Study in Infrared and X-ray: Mid-Infrared Observations and Catalogs
• Characterising the i-band variability of YSOs over six orders of magnitude in timescale
• A wide-area photometric and astrometric (Gaia DR2) study of the young cluster NGC 6530
• Candidate X-ray-Emitting OB Stars in the MYStIX Massive Star-Forming Regions
• Spatial and dynamical structure of the NGC 2264 star-forming region
• Deep, multi-band photometry of low-mass stars to reveal young clusters: a blind study of the NGC 2264 region
• Young Stellar Populations in MYStIX Star Forming Regions: Candidate Protostars
• The young stellar content of the giant HII regions M8, G333.6-0.2, and NGC6357 with VLT/KMOS
• The Effect of Molecular Cloud Properties on the Kinematics of Stars Formed in the Trifid Region
• XUE. JWST spectroscopy of externally irradiated disks around young intermediate-mass stars
• Multiwavelength Studies of Young OB Associations
• ALMA detections of circumstellar disks in the giant Hii region M17. Probing the intermediate- to high-mass pre-main-sequence population