AndreaBozzo/ceres-open-data-index huggingface dataset:
Sloan Digital Sky Survey/XMM-Newton AGN Spectral Properties Catalog

Bright XMM-Newton data are combined with the Chandra Deep Field South observations to explore the behavior of the intrinsic AGN absorption, as a function of redshift and luminosity. The sample consists of 359 sources selected in the hard 2 - 8 keV band, spanning the flux range from 6 x 10&lt;sup&gt;-16&lt;/sup&gt; - 3 x 10&lt;sup&gt;-13&lt;/sup&gt; erg/cm&lt;sup&gt;2&lt;/sup&gt;/s with a high rate of spectroscopic or photometric redshift completeness (100 and 85 percent for the Chandra and XMM-Newton data, respectively). The authors derive the column density values using X-ray spectral fits. They find that the fraction of obscured AGN falls with increasing luminosity in agreement with previous findings. The fraction of obscured AGN shows an apparent increase at high redshifts (z &gt; 2). Simulations show that this effect can most probably be attributed to the fact that at high redshifts the column densities are overestimated. This table contains the subset of 153 brighter hard X-ray sources in the XMM-Newton/Sloan Digital Sky Survey (SDSS) sample which have 2-8 keV fluxes &gt; 3 x 10&lt;sup&gt;-14&lt;/sup&gt; erg cm&lt;sup&gt;-2&lt;/sup&gt; s&lt;sup&gt;-1&lt;/sup&gt;, excluding a number of sources with extended optical morphology and blue colors, as well as 4 sources with X-ray to optical fluxes &lt; 0.1 which are fit better with stellar rather than QSO templates. Much more information on the SDSS is available at the project&#39;s web site at &lt;a href="http://www.sdss.org/"&gt;http://www.sdss.org/&lt;/a&gt;. This table was created by the HEASARC in July 2007 based on &lt;a href="https://cdsarc.cds.unistra.fr/ftp/cats/J/A+A/459/693"&gt;CDS Catalog J/A+A/459/693&lt;/a&gt; file table2.dat. This is a service provided by NASA HEASARC .

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Organization: National Aeronautics and Space Administration
ROSETTA-ORBITER 67P OSIWAC 4 ESC1-MTP013 RDR-STR-REFL V1.0

This CODMAC level 4 data set contains solar stray light corrected, radiometric calibrated and geometric distortion corrected (resampled) image data in in reflectance units (normalized and thus without unit), acquired by the OSIRIS Wide Angle Camera on the Rosetta spacecraft during the COMET ESCORT 1 mission phase, covering the period from 2015-02-10T23:25:00.000 to 2015-03-10T23:24:59.000. The prime target is comet 67P/Churyumov-Gerasimenko 1 (1969 R1). This version V1.0 is the first version of this dataset: Lien corrected dataset after October 2018 PSA/PDS external peer review.

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Organization: National Aeronautics and Space Administration
NGC 2547 XMM-Newton X-Ray Point Source Catalog

This table contains a list of point sources detected by XMM-Newton EPIC in a pointing towards the young open cluster NGC 2547, made in order to allow the authors to characterize coronal activity in solar-type stars, and stars of lower mass, at an age of 30 Myr. X-ray emission was seen from stars at all spectral types, peaking among G stars at luminosities (0.3 - 3 keV) of L&lt;sub&gt;x&lt;/sub&gt; ~= 10&lt;sup&gt;30.5&lt;/sup&gt; erg/s and declining to L&lt;sub&gt;x&lt;/sub&gt; &lt;= 10&lt;sup&gt;29&lt;/sup&gt; erg/s among M stars with masses &gt;=0.2 solar masses. Coronal spectra show evidence for multi-temperature differential emission measures and low coronal metal abundances of Z~= 0.3. Most of the solar-type stars in NGC 2547 exhibit saturated or even supersaturated X-ray activity levels. The median levels of L&lt;sub&gt;x&lt;/sub&gt; and L&lt;sub&gt;x&lt;/sub&gt;/L&lt;sub&gt;bol&lt;/sub&gt; in the solar-type stars of NGC 2547 are very similar to those in T-Tauri stars of the Orion Nebula cluster (ONC), but an order of magnitude higher than in the older Pleiades. The spread in X-ray activity levels among solar-type stars in NGC 2547 is much smaller than in older or younger clusters. This table contains the properties of those X-ray sources which are correlated with optical cluster members (see Section 2.2 of the reference paper for details on the correlation procedure that was adopted), as well as the properties of those X-ray sources which are uncorrelated with any optical cluster members. The table lists the cross-identifications with optical catalogs for the candidate cluster sources along with their X-ray luminosities and X-ray to bolometric flux ratios, as well as the correlations between cluster members which were detected by XMM-Newton and those detected 7 years earlier by the ROSAT HRI instrument, along with the X-ray luminosities and flux ratios as determined by the HRI. This table was created by the HEASARC in February 2007 based on &lt;a href="https://cdsarc.cds.unistra.fr/ftp/cats/J/MNRAS/367/781"&gt;CDS Catalog J/MNRAS/367/781&lt;/a&gt; files table1.dat, table2.dat, table3.dat and table7.dat. This is a service provided by NASA HEASARC .

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Organization: National Aeronautics and Space Administration
Carina Nebula Gum 31 Chandra X-Ray Point Source Catalog

Gum 31 is a prominent, but still rather poorly studied, HII region around the stellar cluster NGC 3324 at the northwestern periphery of the Carina nebula complex. The aim of the authors aim was to reveal and characterize the young stellar population in Gum 31. An X-ray survey is the only efficient way to identify young stars in this region, which has extremely high galactic field-star contamination, that can avoid the strong biases of infrared-excess-selected samples of disk-bearing young stars. The authors used the Chandra observatory to perform a deep (70 ks) X-ray observation of the Gum 31 region and detected 679 X-ray point sources. This extends and complements the X-ray survey of the central Carina nebula regions performed in the Chandra Carina Complex Project (CCCP, available in the HEASARC database system as the CARINACXO table). Using deep near-infrared images from their recent VISTA survey of the Carina nebula complex, their comprehensive Spitzer point-source catalog, and optical archive data, the authors identify counterparts for 75% of these X-ray sources. The aimpoint of the ACIS-I observation was set to be RA(J2000) = 10&lt;sup&gt;h&lt;/sup&gt; 37&lt;sup&gt;m&lt;/sup&gt; 36.6&lt;sup&gt;s&lt;/sup&gt;, Dec(J2000) = -58&lt;sup&gt;o&lt;/sup&gt; 41&#39; 18&quot;. This position is close to the center of the H II region, and allows both the stellar cluster NGC 3324 and the cluster G286.38-0.26 to be in the inner parts of the field-of-view, where the point-spread function is still very good. The pointing roll angle (i.e., the orientation of the detector with respect to the celestial north direction) was 138.35&lt;sup&gt;o&lt;/sup&gt;. The ACIS field-of-view is just wide enough to cover the full spatial extent of the optically bright Gum 31 H II region and some parts of the surrounding dust shell (see Fig. 1 of the reference paper). The ACIS-I field of view is 17&#39; x 17&#39;, which corresponds to 11.3 p x 11.3 pc at the Gum 31 distance of 2.3 kpc). The total net exposure time of the observation was 68,909s (19.14 h). The details of the source detection procedures are described in Section 21. of the reference paper. The final X-ray catalog contains 679 individual point sources. The number of extracted counts ranges from 3 for the faintest sources, up to 920 for the strongest source, while the median value is 11 counts. This table contains the basic X-ray properties and near- and mid-infrared photometry of the X-ray sources detected in the Gum 31 field. The details of the IR matching to the X-ray sources are given in Sections 4.1, 4.2 and 4.3 of the reference paper. This table was created by the HEASARC in May 2014 based on &lt;a href="https://cdsarc.cds.unistra.fr/ftp/cats/J/A+A/564/A120"&gt;CDS Catalog J/A+A/564/A120&lt;/a&gt; files table1.dat and table3.dat. This is a service provided by NASA HEASARC .

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Organization: National Aeronautics and Space Administration
NASA Aircraft Bioaerosol Collector (ABC)

Airborne microorganisms in the upper troposphere and lower stratosphere remain elusive due to a lack of reliable sample collection systems. To address this problem, we designed, installed, and flight-validated a novel Aircraft Bioaerosol Collector (ABC) for NASA's C-20A that can make collections for microbiological research investigations up to altitudes of 13.7 km. Herein we report results from the first set of science flights—four consecutive missions flown over the United States (US) from 30 October to 2 November, 2017. To ascertain how the concentration of airborne bacteria changed across the tropopause, we collected air during aircraft Ascent/Descent (0.3 to 11 km), as well as sustained Cruise altitudes in the lower stratosphere (~12 km). Bioaerosols were captured on DNA-treated gelatinous filters inside a cascade air sampler, then analyzed with molecular and culture-based characterization. Several viable bacterial isolates were recovered from flight altitudes, including Bacillus sp., Micrococcus sp., Arthrobacter sp., and Staphylococcus sp. from Cruise samples and Brachybacterium sp. from Ascent/Descent samples. Using 16S V4 sequencing methods for a culture-independent analysis of bacteria, the average number of total OTUs was 305 for Cruise samples and 276 for Ascent/Descent samples. Some taxa were more abundant in the flight samples than the ground samples, including OTUs from families Lachnospiraceae, Ruminococcaceae and Erysipelotrichaceae as well as the following genera: Clostridium, Mogibacterium, Corynebacterium, Bacteroides, Prevotella, Pseudomonas, and Parabacteroides. Surprisingly, our results revealed a homogeneous distribution of bacteria in the atmosphere up to 12 km. The observation could be due to atmospheric conditions producing similar background aerosols across the western US, as suggested by modeled back trajectories and satellite measurements. However, the influence of aircraft-associated bacterial contaminants could not be fully eliminated and that background signal was reported throughout our dataset. Considering the tremendous engineering challenge of collecting biomass at extreme altitudes where contamination from flight hardware remains an ever-present issue, we note the utility of using the stratosphere as a proving ground for planned life detection missions across the solar system.

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Organization: National Aeronautics and Space Administration
GPIPS DR4 Unique Star Catalog

The Galactic Plane Infrared Polarization Survey (GPIPS) covers 76 sq. deg. of the first Galactic quadrant midplane, 18<l<56 deg and -1<b<+1 deg, in H-band (1.6 micron) linear polarimetry to reveal the plane-of-the-sky orientation of the magnetic field in diffuse and denser atomic and molecular clouds. The Survey consists of 3234 overlapping 10x10 arcmin fields observed using the Mimir instrument on the 1.8 m Perkins telescope.\n\nThe unique star data file (Clemens et al. 2020) collects all GPIPS photometry and polarimetry and all matching stellar data appropriate to each GPIPS star. The unique star file contains entries for 13,861,329 GPIPS stars.

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Organization: National Aeronautics and Space Administration
ROSETTA-ORBITER 67P RSI 1/2/3 COMET ESCORT 2 0698 V1.0

This is a Rosetta Radio Science data set, collected during the COMET ESCORT 2 phase 2015-03-11 to 2015-06-30. It is a Global Gravity measurement at the comet 67P and covers the time 2015-04-07T23:28:05.000 to 2015-04-08T08:20:37.500.

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Organization: National Aeronautics and Space Administration
CMS: Global 0.5-deg Wetland Methane Emissions and Uncertainty (WetCHARTs v1.3.3)

This dataset provides global monthly wetland methane (CH4) emissions estimates at 0.5 by 0.5-degree resolution for the period 2001-01-01 to 2022-08-31 that were derived from an ensemble of multiple terrestrial biosphere models, wetland extent scenarios, and CH4:C temperature dependencies that encompass the main sources of uncertainty in wetland CH4 emissions. There are 18 model configurations. WetCHARTs v1.3.3 is an updated product of WetCHARTs v1.3.1 dataset. The intended use of this product is as a process-informed wetland CH4 emission data set for atmospheric chemistry and transport modeling. Users can compare estimates by model configuration to explore variability and sensitivity with respect to ensemble members. The data are provided in netCDF format.

Tags: earth-science-air-quality-atmosphere-emissions, earth-science-atmospheric-chemistry-atmosphere-carbon-and-hydrocarbon-compounds-methane, earth-science-ecosystems-biosphere-terrestrial-ecosystems-wetlands
Organization: National Aeronautics and Space Administration
ROSETTA-ORBITER SW RPCMAG 2 PRL RAW V9.0

This dataset contains EDITED RAW DATA (CODMAC LEVEL 2) of thePRELANDING Phase (PRL) from March 23,2014 until November 21, 2014of the ROSETTA orbiter magnetometer RPCMAG. Observations are done inthe vicinity of comet 67P/CHURYUMOV-GERASIMENKO 1 (1969 R1).The current version of the dataset is V9.0.The difference to the datasets of earlier versions is mainly a significantlyimproved sensor temperature model, more detailed documentation about magneticdisturbance sources, more data handling information for the user andalso an improved quality flagging system.This applies mainly to CALIBRATED and RESAMPLED datasets. The RAW dataset,however, has been updated as well in order provide all datasets at thesame stage, although RAW data proper did not change.

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Organization: National Aeronautics and Space Administration
APOLLO 15 ALSEP/SWS SOLAR WIND 1-HR AVG TABLES V1.0

This data set contains tables of time ordered, hourly averaged plasma parameters, mainly of the solar wind, as observed on the Moon at the Apollo 15 ALSEP site by the Apollo 15 Solar Wind Spectrometer from 31 July 1971 through 30 June 1972.

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Organization: National Aeronautics and Space Administration
Giant Metrewave Radio Telescope Field I 150-MHz Radio Source Catalog

Foreground removal is a major challenge for detecting the redshifted 21-cm neutral hydrogen (HI) signal from the Epoch of Reionization. The authors have used 150-MHz Giant Metrewave Radio Telescope (GMRT) observations to characterize the statistical properties of the foregrounds in four different fields of view. The observational data were used to assess point source subtraction. Considering the brightest source (~1 Jy) in each field, the authors find that the residual artefacts are less than 1.5% in the most sensitive field (FIELD I). Considering all the sources in the fields, they find that the bulk of the image is free of artefacts, the artefacts being localized to the vicinity of the brightest sources. The authors have used FIELD I, which has an rms noise of 1.3 mJy beam&lt;sup&gt;-1&lt;/sup&gt;, to study the properties of the radio source population to a limiting flux of 9 mJy. The differential source count is well fitted with a single power law of slope -1.6. They find there is no evidence for flattening of the source counts towards lower flux densities which suggests that source population is dominated by the classical radio-loud active galactic nuclei. The authors have observed FIELD I in GMRT Time Allocation Committee (GTAC) cycle 15 in 2008 January, whereas FIELD II and FIELD III were observed in cycle 17 during 2010 February. These target fields were selected at high Galactic latitudes (b &gt; 10&lt;sup&gt;o&lt;/sup&gt;) which were up at night time during the GTAC cycles 15 and 17, and which contain relatively few bright sources (&gt;= 0.3 Jy) in the 1400 MHz NRAO VLA Sky Survey (NVSS). Finally, FIELD IV was observed in cycle 8 (2005 June). Full details of these 4 observations are given in Table 1 of the reference paper. This table contains the 150-MHz source catalog for the most sensitive observation, namely the 9.8-hour observation of Field I (centered on J2000.0 RA and Dec of 5&lt;sup&gt;h&lt;/sup&gt; 30&lt;sup&gt;m&lt;/sup&gt; 00&lt;sup&gt;s&lt;/sup&gt;, +60&lt;sup&gt;o&lt;/sup&gt; 00&#39; 00&quot;), which was made on 2008 January 8. This table was created by the HEASARC in September 2013 based on &lt;a href="https://cdsarc.cds.unistra.fr/ftp/cats/J/MNRAS/426/3295"&gt;CDS Catalog J/MNRAS/426/3295&lt;/a&gt; file tablea1.dat This is a service provided by NASA HEASARC .

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Organization: National Aeronautics and Space Administration
CMS: LiDAR Biomass Improved for High Biomass Forests, Sonoma County, CA, USA, 2013

This data set provides estimates of above-ground woody biomass and uncertainty at 30-m spatial resolution for Sonoma County, California, USA, for the nominal year 2013. Biomass estimates, megagrams of biomass per hectare (Mg/ha), were generated using a combination of airborne LiDAR data and field plot measurements with a parametric modeling approach. The relationship between field estimated and airborne LiDAR estimated aboveground biomass density is represented as a parametric model that predicts biomass as a function of canopy cover and 50th percentile and 90th percentile LiDAR heights at a 30-m resolution. To estimate uncertainty, the biomass model was re-fit 1,000 times through a sampling of the variance-covariance matrix of the fitted parametric model. This produced 1,000 estimates of biomass per pixel. The 5th and 95th percentiles, and the standard deviation of these pixel biomass estimates, were calculated.

Tags: earth-science-vegetation-biosphere-biomass, earth-science-vegetation-biosphere-canopy-characteristics, earth-science-vegetation-biosphere-vegetation-cover
Organization: National Aeronautics and Space Administration
NEW HORIZONS  LORRI PLUTO CRUISE  RAW V2.0

This data set contains Raw data taken by the New Horizons  Long Range Reconnaissance Imager  instrument during the  pluto cruise  mission phase. This is VERSION 2.0 of this data set. The spacecraft was in hibernation for much of the Pluto Cruise mission phase, and the focus for LORRI during Annual CheckOuts (ACOs) one through four (ACO1-4) was preparation for the Pluto Encounter in 2015, including functionaltests, calibrations, and encounter rehearsals. Science observations performedby LORRI during this phase included the following targets: KBO objects KBO 2005 FY9 (Makemake) and KBO 2003 EL61 (Haumea); Centaur object Chariklo; the planets Jupiter, Uranus, and Neptune. The ACO tests also had LORRI observing several other targets: Pluto; the star field that will be visible 3 days before Pluto closest approach in 2015; the M7 star field; the star Vega. A full functional test was performed during ACO1 in 2007, with ACO 'Lite' tests performed during ACO2-4 in 2008, 2009 and 2010. Specific tests and calibrations performed during ACOs included the following: scattered light test (2007, 2008, 2010); Pluto OpNav test (2007, 2008); lamp tests (2007, 2008, 2009, 2010); star tracker calibration test (2008); GNC mosaic settling test (2008); LEISA-LORRI ridealong (2008); scattered light dither test (2010).  The changes in Version 2.0 were re-running of the ancillary data  in the data product, updated geometry from newer SPICE kernels,  minor editing of the documentation, catalogs, etc., and resolution  of liens from the December, 2014 review, plus those from the May,  2016 review of the Pluto Encounter data sets.   The lossy images from Version 1.0 were recalibrated, including  expanding the 'bad' pixel designation of 8x8 boxes affected by the  first 34 pixels of header information in the calibrated quality map.   No new observations were added with this version (V2.0).

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Organization: National Aeronautics and Space Administration
YSOVAR IRAS 20050+2720 Light Curve Table

The YSOVAR (Young Stellar Object VARiability) Spitzer Space Telescope observing program obtained the first extensive mid-infrared (IRAC 3.6 and 4.5 micron) time series photometry of the Orion Nebula Cluster plus smaller fields in 11 other star-forming cores (AFGL 490, NGC 1333, Mon R2, GGD 12-15, NGC 2264, L1688, Serpens Main, Serpens South, IRAS 20050+2720, IC 1396A, and Ceph C). There are ~29,000 unique objects with light curves in either or both IRAC channels in the YSOVAR data set. YSOVAR is a sister project to the Coordinated Synoptic Investigation of NGC 2264 (CSI 2264; Cody et al. 2014). Initial YSOVAR results were described in Morales-Calderon et al. (2011). Rebull et al. (2014) describes the details of target selection, data reduction, and other conventions established for this project.

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Organization: National Aeronautics and Space Administration
ROSETTA-ORBITER 67P RPCIES 2 PRL V1.0

This dataset contains EDITED RAW DATA of the Rosetta RPCIES instrument taken during the Prelanding phase (PRL). The target of this phase was comet 67P/CHURYUMOV-GERASIMENKO 1 (1969 R1). Included are the data taken between 21 Jan 2014 and 20 Nov 2014.

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Organization: National Aeronautics and Space Administration
ROSAT All-Sky Survey: A-K Dwarfs/Subgiants

This catalog presents X-ray data for all the main-sequence and subgiant stars of spectral types A, F, G, and K and luminosity classes IV and V listed in the Bright Star Catalogue (also known as the HR Catalogue) that have been detected as X-ray sources in the ROSAT All-Sky Survey (RASS). A number of stars in the appropriate spectral type range that do not have assigned luminosity classes have also been included. The catalogue contains 980 such HR stars detected as X-ray sources out of a total of 3054 stars in the HR Catalogue that satisfy the selection criteris, implying an average detection rate of 32%. In addition to the measured ROSAT PSPC count rates, source detection parameters, hardness ratios, and X-ray fluxes, X-ray luminosities derived from Hipparcos parallaxes are also listed. This database was created at the HEASARC in February 1999 based on the ADC/&lt;a href="https://cdsarc.cds.unistra.fr/ftp/cats/J/A+AS/132/155"&gt;CDS Catalog J/A+AS/132/155&lt;/a&gt;. This is a service provided by NASA HEASARC .

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Organization: National Aeronautics and Space Administration
ROSETTA-ORBITER 67P RSI 1/2/3 COMET ESCORT 4 1244 V1.0

This is a Rosetta Radio Science data set, collected during the COMET ESCORT 4 phase 2015-10-22 to 2015-12-31. It is a Global Gravity measurement at the comet 67P and covers the time 2015-12-08T12:00:15.000 to 2015-12-08T16:08:51.500.

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Organization: National Aeronautics and Space Administration