juliensimon/integral-ibis-hard-xray

INTEGRAL IBIS 17-Year Hard X-Ray Survey

Part of the Astronomy Datasets collection on Hugging Face.

The INTEGRAL IBIS hard X-ray survey catalog from 17 years of observations with the IBIS coded-mask telescope aboard ESA's INTEGRAL satellite. Contains 929 hard X-ray sources detected in the 17--290 keV energy range across 24 source types, with multi-band flux measurements in 8 energy sub-bands.

Dataset description

This catalog (Krivonos et al. 2022, MNRAS 510, 4796) presents the deepest all-sky survey in the hard X-ray band to date. Sources were detected using the IBIS/ISGRI detector over 17 years of INTEGRAL observations (2003--2020). The catalog provides flux measurements in 8 energy sub-bands spanning 17--290 keV, plus source classifications, redshifts, and transient/extended flags.

Schema

Column	Type	Description
source_id	Int32	Unique source identifier
source_name	string	Source name
ra_deg	float64	Right ascension J2000 (degrees)
dec_deg	float64	Declination J2000 (degrees)
flux_17_60kev	float64	Flux in 17--60 keV band (mCrab)
flux_err_17_60kev	float64	Flux uncertainty in 17--60 keV band
snr_17_60kev	float64	Signal-to-noise ratio in 17--60 keV band
source_type	string	Source classification
redshift	float64	Redshift (when available)
transient_flag	string	Transient source flag
extended_flag	string	Extended source flag
confused_flag	string	Confused source flag
noisy_flag	string	Noisy region flag
references	string	Literature references
counterpart	string	Counterpart identification
notes	string	Additional notes
flux_17_35kev	float64	Flux in 17--35 keV sub-band
flux_35_80kev	float64	Flux in 35--80 keV sub-band
flux_80_150kev	float64	Flux in 80--150 keV sub-band
flux_150_290kev	float64	Flux in 150--290 keV sub-band
flux_17_80kev	float64	Flux in 17--80 keV sub-band
flux_35_150kev	float64	Flux in 35--150 keV sub-band
flux_80_290kev	float64	Flux in 80--290 keV sub-band
flux_17_290kev	float64	Flux in 17--290 keV full band
flux_err_*	float64	Corresponding flux uncertainties for each sub-band
snr_*	float64	Signal-to-noise ratios for each sub-band
plate	string	Sky plate identifier
simbad_name	string	SIMBAD cross-matched name
has_redshift	bool	True if redshift is available

Quick stats

• 929 hard X-ray sources
• 401 sources with measured redshift (43.2%)
• Median flux (17--60 keV): 0.00 mCrab
• Peak S/N: 15698.6

Usage

from datasets import load_dataset

ds = load_dataset("juliensimon/integral-ibis-hard-xray", split="train")
df = ds.to_pandas()

# Flux distribution
import matplotlib.pyplot as plt
df["flux_17_60kev"].clip(upper=100).hist(bins=100, log=True)
plt.xlabel("Flux 17-60 keV (mCrab)")
plt.ylabel("Count")
plt.title("INTEGRAL IBIS Hard X-Ray Flux Distribution")
plt.show()

# Source type breakdown
df["source_type"].value_counts().head(10).plot.barh()
plt.xlabel("Count")
plt.title("Top 10 Source Types")
plt.tight_layout()
plt.show()

# Sky map
plt.scatter(df["ra_deg"], df["dec_deg"], s=2, c=df["snr_17_60kev"].clip(upper=50), cmap="hot")
plt.colorbar(label="S/N")
plt.xlabel("RA (deg)")
plt.ylabel("Dec (deg)")
plt.title("INTEGRAL IBIS All-Sky Hard X-Ray Sources")
plt.show()

Data source

Krivonos, R. et al. (2022), INTEGRAL/IBIS 17-yr hard X-ray all-sky survey. Monthly Notices of the Royal Astronomical Society, 510, 4796--4828. Via VizieR CDS (J/MNRAS/510/4796/table1).

Pipeline

Source code: juliensimon/space-datasets

Citation

@dataset{integral_ibis_hard_xray,
  author = {Simon, Julien},
  title = {INTEGRAL IBIS 17-Year Hard X-Ray Survey},
  year = {2026},
  publisher = {Hugging Face},
  url = {https://huggingface.co/datasets/juliensimon/integral-ibis-hard-xray},
  note = {Based on Krivonos et al. (2022) via VizieR CDS}
}

License

CC-BY-4.0