NIC3 FOM Dithered Observations of the Orion Nebula
HST Treasury Program 10246 - a survey of the Orion Nebula Cluster with ACS/WFPC2/NICMOS
Temperature and Bias Variation and Measurement in the NICMOS Detectors
The NICMOS detectors on HST are extremely sensitive to changes in operating temperature and supply voltage. These temperature and voltage variations affect quantum efficiency, dark current and bias in ways that limit overall sensitivity and make calibration difficult.
Study of NICMOS Non-linearity
A non-linearity of up to 5% per dex (at 1.2 micron) was found when comparing counts of common stars between NICMOS/STIS/ACS
NICMOS Calibration Presentations at the 2005 HST Calibration Workshop
Several members of the NICMOS team gave presentations and provided posters of current work.
2005 Calibration Workshop NICMOS IntraPixel Sensitivity
We present here the new measurements of the NICMOS (Camera 3) intrapixel sensitivity after the installation of the cryo-cooler in Cycle 11.
2005 Calibration Workshop New NICMOS Readout Sequences
On 12 June 2005, four new NICMOS multi-accum sequences (SPARS4, SPARS16, SPARS32, SPARS128) were implemented in the NICMOS flight-software.
2005 Calibration Workshop Presentation - NICMOS Status
Status report on the NICMOS instrument, pipeline software, photometry, non-linearity, zeropoint, and calibration plans.
Domains of Observability in the Near-Infrared with HST/NICMOS and (Adaptive Optics Augmented) Large Ground-Based Telescopes
This paper discusses the near infrared capabilities of NICMOS as compared with those of ground-based adaptive optics systems.
2002 HST Calibration Workshop: Combining NICMOS Parallel Observations
Poster presentation from 2002 HST Calibration Workshop, Space Telescope Science Institute, Baltimore, MD, October 17-18, 2002. This paper describes how to combine NICMOS parallel observations into mosaics and remove the thermal background.
Presentation from 2002 SPIE Meeting: Post-NCS Performance of the HST NICMOS
Paper presented at SPIE Meeting, Astonomical Telescopes & Instrumentation, Kona, Hawaii, August 22-28, 2002. The on-orbit performance of NICMOS is described. The higher operating temperature (77K) of the post-NCS NICMOS has resulted in some performance changes such as higher QE and lower well-depth.
Presentation from 2002 SPIE Meeting: A Cryogenic Cooling System for Restoring IR Science on the Hubble Space Telescope
Paper presented at SPIE Meeting, Astonomical Telescopes
& Instrumentation, Kona, Hawaii, August 22-28, 2002. This paper presents a description of the HST NICMOS Cooling System (NCS), the evolution of the cutting edge technology involved, a comparison of the predicted versus on-orbit thermal performance, as well as possible future spacce applications.
Paper from 2002 SPIE Meeting: A Mechanical Cryogenic Cooler for the Hubble Space Telescope
Paper presented at SPIE Meeting, Astonomical Telescopes
& Instrumentation, Kona, Hawaii, August 22-28, 2002. This paper presents a description of the HST NICMOS Cryo Cooler (NCC), the cutting edge technology involved, its evolution, performance, and future space applications.
Presentation from 2002 SPIE Meeting: The NICMOS Revival: Detector Performance in the NCS Era
Paper presented at SPIE Meeting, Astonomical Telescopes
& Instrumentation, Kona, Hawaii, August 22-28, 2002. The current detector performance of the Near INfrared and MultiObject Spectrometer (NICMOS) is summarized. The timeline of the NICMOS cooldown as well as the results from the cooldown monitoring program to characterize the NICMOS detectors are presented.
NICMOS Flyer for June 2002 AAS Meeting
The NICMOS instrument is back online and ready for G.O. observations with improved scientific performance!
NICMOS Early Release Observations
The first science observations taken with the newly refurbished NICMOS camera in Cycle 11.
STScI On-line Conference Proceedings
Properties of PACE-I HgCdTe Detectors in Space - the NICMOS Warm up Monitoring Program
We summarize the results of a monitoring program which was executed following the cryogen exhaustion of NICMOS onboard the Hubble Space Telescope.
Analysis of Polarized Light with NICMOS
Preflight thermal vacuum tests revealed
that the three polarizers in each of the three NICMOS cameras have unique polarizing efficiencies and that the rotational
orientations within each set depart from the nominal 120° intervals.
EMI Test (2000) Photo Gallery
Images from the NCC and NICMOS flight spare detector EMI test.
NICMOS Poster Papers Presented at the 195th Meeting of the AAS in Atlanta, GA
NICMOS Poster Papers Presented at the 195th Meeting of the AAS in Atlanta, GA
NICMOS Poster Papers Presented at the 194th Meeting of the AAS in Chicago, IL
NICMOS Poster Papers Presented at the 194th Meeting of the AAS in Chicago, IL
NICMOS Poster papers presented at the
193rd Meeting of the AAS in Austin, TX
NICMOS Poster papers presented at the 193rd Meeting of the AAS in Austin, TX
Characterization and Subtraction of Well-Exposed HST/NICMOS Camera 2 Point-Spread Functions for a Survey of Very Low Mass Companions to Nearby Stars
We are conducting a search for very low mass (M<0.2 M_solar) companions of stars within 10 pc of the Sun
using the NICMOS infrared camera on the Hubble Space Telescope. The highly exposed images of each
target star are subtracted from the NICMOS Camera 2 (NIC2) field using previously observed stars so that
faint companions may be detected.
NICMOS Poster Papers Presented at the
192nd Meeting of the AAS in San Diego, CA
NICMOS Poster Papers Presented at the 192nd Meeting of the AAS in San Diego, CA
Imaging Polarimetry with NICMOS
Imaging Polarimetry with NICMOS
Proceedings of the Sardinia Workshop 26-27 May 1998
The goal of this workshop was to review the achievments of NICMOS and consider what could be accomplished in the time remaining before cryogen exhaustion, and to examine the possibility of optimizing future NICMOS observations by taking into account ESO's Very Large Telescope's (VLT) IR imaging and spectroscopic capabilities.
EMI Noise Properties of the NICMOS Cooling System as Seen by a NIC3 Flight Spare Detector
Analysis of power spectra obtained from images taken with a NIC3 flight spare detector and configured test dewar electrically connected to the NCS reveal low-level broad-band induced power in the images in the ~5kHz-9kHz region, along with a narrow band power contribution at 4051 kHz.
Deep H-band Galaxy Counts and Half-light Radii from HST/NICMOS
Parallel Observations
We present deep galaxy counts and half-light radii from F160W images
obtained with NICMOS on HST.
NICMOS Poster Papers Presented at the 191st Meeting of the AAS in Washington D.C.
NICMOS Poster Papers Presented at the 191st Meeting of the AAS in Washington D.C.
Long Term and Short Term Variations of NICMOS Foci
We present the results of the NICMOS focus monitoring program and discuss long term focus variations due to ongoing deformation processes within NICMOS, short term variations due to HST 'breathing' effects, and focus spatial variations across NICMOS fields of view.
NICMOS Post Observation Processing, Software and Reference Files
This poster examines the improvements to the pipeline calibration software, calibration reference files, and software analysis tools. Recalibration may greatly enhance the quality of their data.
Understanding the NICMOS Darks
This paper describes the characteristics of the 'dark current' for the NICMOS flight detectors, namely the instrumental signal present in exposures made in the absence of any external illumination. We show how this comprises three distinct components - the shading, amplifier glow, and the true dark current. We then describe a recipe for generating 'synthetic' dark current calibration reference files, which could in principle be used to generate darks for any arbitrary sequence of MULTIACCUM reads.
The HST NICMOS Service Parallel Program
The HST NICMOS Service Parallel Program
HST Results Presented at AAS Jan. 1998
The following are results presented during the Winter 1998 American Astronomical Society (AAS)
meeting that have used data obtained from the HST and other missions.
On-orbit Properties of the NICMOS Detectors on HST
We describe the on-orbit characterization of the HgCdTe detectors aboard NICMOS.
Absolute Flux Distributions of Solar Analogs from the UV to the Near-IR
he 0.225-2.695mu m absolute flux distributions of the solar analogs P041C, P177D, and P330E are presented.