metadata
license: apache-2.0
language:
- en
base_model:
- nasa-impact/nasa-smd-ibm-v0.1
pipeline_tag: text-classification
tags:
- unified
- astronomy
- thesaurus
- uat
widget:
- text: >-
Solar Observations by Angelo Secchi. I. Digitization of Original Documents
and Analysis of Group Numbers over the Period of 1853-1878. Angelo Secchi,
an Italian Jesuit and prominent scientist of the 19th century, and one of
the founders of modern astrophysics, observed the Sun regularly at the
Collegio Romano in Rome, Italy, for more than 25 yr. Results from his
observations are reported in articles published in the scientific journals
of the time, as well as in drawings and personal notebooks that are stored
in the historical archive of the Istituto Nazionale di Astrofisica
Osservatorio Astronomico di Roma. The latter material, which reports solar
observations performed from 1853-1878, includes original documents from
Secchi and from a few of his close collaborators. The above unique
material has recently been digitized for preservation purposes and for
allowing the scientific exploitation of data not easily accessible so far.
A total of more than 5400 digital images have been produced. Here we
present the archival material and the new digital data derived from it. We
also present results obtained from our primary analysis of the new digital
data. In particular, we produced new measurements of the group number from
1853-1878, which will be available for future recalibration of the group
number series.
example_title: Solar Observations by Angelo Secchi
- text: >-
Disk-resolved Photometric Properties of Pluto and the Coloring Materials
across its Surface. A multiwavelength regionally dependent photometric
analysis of Pluto's anti-Charon-facing hemisphere using images collected
by New Horizons' Multispectral Visible Imaging Camera (MVIC) reveals large
variations in the absolute value and spectral slope of the
single-scattering albedo. Four regions of interest are analyzed: the dark
equatorial belt, Pluto's north pole, nitrogen-rich regions, and the
mid-latitude terrains. Regions dominated by volatile ices such as Lowell
Regio and Sputnik Planitia present single-scattering albedos of ∼0.98 at
492 nm, almost neutral across MVIC's visible wavelength range (400-910
nm), indicating limited contributions from tholin materials. Pluto's dark
equatorial regions, informally named Cthulhu and Krun Maculae, have
single-scattering albedos of ∼0.16 at 492 nm and are the reddest regions.
Applying the Hapke radiative transfer model to combined MVIC and Linear
Etalon Imaging Spectral Array (LEISA) spectra (400-2500 nm) of Cthulhu
Macula and Lowell Regio successfully reproduces the spectral properties of
these two regions of dramatically disparate coloration, composition, and
morphology. Since this model uses only a single coloring agent, very
similar to the Titan-like tholin of Khare et al., to account for all of
Pluto's colors, this result supports the Grundy et al. conclusion that
Pluto's coloration is the result of photochemical products mostly produced
in the atmosphere. Although cosmic rays and extreme ultraviolet photons
reach Pluto's surface where they can drive chemical processing,
observations of diverse surface colors do not require different chemical
products produced in different environments. We report a correction
scaling factor in the LEISA radiometric calibration of 0.74 ± 0.05.
example_title: Photometric Properties of Pluto
KAILAS
KAILAS (aka Keyword Labeler At SciX aka Indus-UAT-Labeler aka nasa-smd-ibm-v0.1_UAT_Labeler) is a RoBERTa-based, Encoder-only transformer model, domain-adapted for NASA Science Mission Directorate (SMD) applications. It's fine-tuned on scientific journals and articles relevant to NASA SMD, aiming to enhance natural language technologies like information retrieval and intelligent search.
This specific fork was finetuned on SciX Digital Library (https://scixplorer.org/, formerly NASA-ADS) proprietary data to label text with UAT labels (https://astrothesaurus.org/)
Model Details
- Base Model: RoBERTa
- Tokenizer: Custom
- Parameters: 125M
Training Data
- 18K titles, abstracts, body and acknowledgments from recent, quality astronomy papers
- approximately 217M tokens
Contact
KAILAS is maintained by Dr. Felix Grezes and Dr. Jennifer Lynn Bartlett.