_version_ 1866914532386930688
author Sankrit, Ravi
Debes, John
Burger, Matthew
Dixon, Van
Payne, Anna
Santos, Leonardo Dos
Wevers, Thomas
Fischer, Travis
Forshay, Peter
Hernandez, Svea
Jedrzejewski, Robert
Kidwell, Rich
Miller, Lauren
Rafelski, Marc
Rodriguez, David
Swaters, Robert
Welty, Dan
Anderson, Sara
Bair, Thomas
Carlberg, Joleen
Charlow, Brian
Cortese, Andrew
Ellis, Tracy
Falk, Ben
Fleming, Scott
Frazer, Elaine
Gilani, Syed
Hirschauer, Alec
Kelley, Talya
Kimball, Tim
Kotler, Jennifer
Lucy, Adrian
Malla, Sunita
Rahmani, Christopher
Romelfanger, Fred
Rowlands, Kate
Sherbert, Lisa
author_facet Sankrit, Ravi
Debes, John
Burger, Matthew
Dixon, Van
Payne, Anna
Santos, Leonardo Dos
Wevers, Thomas
Fischer, Travis
Forshay, Peter
Hernandez, Svea
Jedrzejewski, Robert
Kidwell, Rich
Miller, Lauren
Rafelski, Marc
Rodriguez, David
Swaters, Robert
Welty, Dan
Anderson, Sara
Bair, Thomas
Carlberg, Joleen
Charlow, Brian
Cortese, Andrew
Ellis, Tracy
Falk, Ben
Fleming, Scott
Frazer, Elaine
Gilani, Syed
Hirschauer, Alec
Kelley, Talya
Kimball, Tim
Kotler, Jennifer
Lucy, Adrian
Malla, Sunita
Rahmani, Christopher
Romelfanger, Fred
Rowlands, Kate
Sherbert, Lisa
contents The new Hubble Spectroscopic Legacy Archive (HSLA) provides coadded spectra of individual targets that have been observed with the Cosmic Origins Spectrograph (COS) and the Space Telescope Imaging Spectrograph (STIS) over their operating lifetime. HSLA uses data available in the Mikulski Archive for Space Telescopes (MAST). It automatically produces coadds whenever new data become publicly available or when there is newly recalibrated data. HSLA defines individual targets by their associated coordinates, accounting for proper motions, and uses SIMBAD, NED and the Phase II observing proposals to obtain astronomical classifications for each object. Coadded spectra are produced for each observing mode. In the case of COS far-ultraviolet observations there is one coadded spectrum for each lifetime position (LP). Additionally, a spectrum spanning the entire wavelength range covered by the observations is produced by abutting the spectra from a selection of individual modes. For each individual target, HSLA also provides a human-readable metadata file with key information that can be used in searches or for further exploration of the data. The HSLA project also makes the code used for coadding spectra publicly available along with several other tools (using Jupyter notebooks) for custom coaddition required in special cases. In this report we will describe the main components of HSLA and provide a brief description of how the data and metadata can be accessed.
format Preprint
id arxiv_https___arxiv_org_abs_2605_04167
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Overview of the New Hubble Spectroscopic Legacy Archive
Sankrit, Ravi
Debes, John
Burger, Matthew
Dixon, Van
Payne, Anna
Santos, Leonardo Dos
Wevers, Thomas
Fischer, Travis
Forshay, Peter
Hernandez, Svea
Jedrzejewski, Robert
Kidwell, Rich
Miller, Lauren
Rafelski, Marc
Rodriguez, David
Swaters, Robert
Welty, Dan
Anderson, Sara
Bair, Thomas
Carlberg, Joleen
Charlow, Brian
Cortese, Andrew
Ellis, Tracy
Falk, Ben
Fleming, Scott
Frazer, Elaine
Gilani, Syed
Hirschauer, Alec
Kelley, Talya
Kimball, Tim
Kotler, Jennifer
Lucy, Adrian
Malla, Sunita
Rahmani, Christopher
Romelfanger, Fred
Rowlands, Kate
Sherbert, Lisa
Instrumentation and Methods for Astrophysics
The new Hubble Spectroscopic Legacy Archive (HSLA) provides coadded spectra of individual targets that have been observed with the Cosmic Origins Spectrograph (COS) and the Space Telescope Imaging Spectrograph (STIS) over their operating lifetime. HSLA uses data available in the Mikulski Archive for Space Telescopes (MAST). It automatically produces coadds whenever new data become publicly available or when there is newly recalibrated data. HSLA defines individual targets by their associated coordinates, accounting for proper motions, and uses SIMBAD, NED and the Phase II observing proposals to obtain astronomical classifications for each object. Coadded spectra are produced for each observing mode. In the case of COS far-ultraviolet observations there is one coadded spectrum for each lifetime position (LP). Additionally, a spectrum spanning the entire wavelength range covered by the observations is produced by abutting the spectra from a selection of individual modes. For each individual target, HSLA also provides a human-readable metadata file with key information that can be used in searches or for further exploration of the data. The HSLA project also makes the code used for coadding spectra publicly available along with several other tools (using Jupyter notebooks) for custom coaddition required in special cases. In this report we will describe the main components of HSLA and provide a brief description of how the data and metadata can be accessed.
title Overview of the New Hubble Spectroscopic Legacy Archive
topic Instrumentation and Methods for Astrophysics
url https://arxiv.org/abs/2605.04167