Mission Overview
HST Imaging of Ionized Filaments and Dust in NGC 5044 (NGC5044-HST)
Primary Investigator: Ming Sun
HLSP Authors: Prathamesh Tamhane
Released: 2026-03-31
Updated: 2026-03-31
Primary Reference(s): Tamhane et al. 2026
DOI: 10.17909/ej9x-ah67
Citations: See ADS Statistics
Source Data:
- Source Data DOI: 10.17909/ 8x62-0x22
- Proposal ID: HST GO 15290
Overview
This HLSP release presents Hubble Space Telescope (HST) observations of NGC 5044 obtained with the WFC3/UVIS camera in the F300X, F665N, and F814W filters. The data products include calibrated, drizzled science images and corresponding RMS maps. These observations trace the morphology of ionized gas filaments and dust structures in the central regions of NGC 5044. The dataset enables detailed studies of the spatial relationship between warm ionized gas, dust, and potential sites of recent star formation in this nearby galaxy group. The associated publication (Tamhane et al. 2026) analyzes the morphology of the ionized filaments and the distribution of dust revealed by these observations.
Data Products
Files from this HLSP follow the naming convention:
hlsp_ngc5044-hst_hst_wfc3_ngc5044_<filter>_v1_<product-type>.fits
where:
- <filter> is the filter used for the observation: "F300X", "F665N" or "F814W".
- <product-type> is the data product type of the file: Calibrated Science Images ("drz") or RMS maps ("rms")
Data product types:
| _drz.fits | Calibrated Science Images: Drizzled mosaics for F300X, F665N and F814W. |
| _rms.fits | RMS maps for each filter, generated from the weight maps with appropriate scaling. |
Data Access
MAST Portal and Astroquery
The NGC5044-HST data products are available in the MAST Search Portal (web-based, cross-mission search interface) and Astroquery (Python package to search for and download files from Python scripts you write).
- In the MAST Search Portal, set the Provenance Name filter to "ngc5044-hst" in an Advanced Search to find these data. The user guide for how to search and download products using the MAST Portal is available here.
- For Astroquery, the following example code demonstrates how to search for and download these products. You can find more astroquery.mast tutorials here.
from astroquery.mast import Observations
# Search for all NGC5044-HST products
all_obs = Observations.query_criteria(provenance_name="ngc5044-hst")
data_products = Observations.get_product_list(all_obs)
# Print the number of data products that would be downloaded
print(len(data_products))
# Download data
Observations.download_products(data_products)
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A web-based interface for cross-mission searches of data at MAST or the Virtual Observatory.
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Search for and download data products for this HLSP programmatically in Python.
Citations
Please remember to cite the appropriate paper(s) below and the DOI 10.17909/ej9x-ah67 if you use these data in a published work.
Note: These HLSP data products are licensed for use under CC BY 4.0.