Access to Astronomical Catalogues

← Click to display the menu
J/A+A/321/L33      Terrestrial impact cratering rate (Jetsu 1997)

The "human" statistics of terrestrial impact cratering rate Jetsu L. <Astron. Astrophys. 321, L33 (1997)> =1997A&A...321L..33J (SIMBAD/NED BibCode)
ADC_Keywords: Earth Keywords: Solar system: Earth - Comets, Techniques: statistical, Galaxy: solar neighbourhood Abstract: The most significant periodicities in the terrestrial impact crater record are due to the "human-signal": the bias of assigning integer values for the crater ages. This bias seems to have eluded the proponents and opponents of real periodicity in the occurrence of these events, as well as the theorists searching for an extraterrestrial explanation for such periodicity. The "human-signal" should be seriously considered by scientists in astronomy, geology and paleontology when searching for a connection between terrestrial major comet or asteroid impacts and mass extinctions of species. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1 125 74 Ages of the impact craters table1.tex 79 343 LaTeX version of table1
Byte-by-byte Description of file: table1
Bytes Format Units Label Explanations
1- 2 I2 --- Seq Sequential number 4- 24 A21 --- Name Crater name 26- 40 A15 --- Country Country 42- 49 F8.3 Myr t Age of the impact crater 51- 58 F8.4 Myr e_t rms uncertainty on age 60- 68 A9 Myr et1/et2 (et1/et2) for combined events 70- 76 F7.3 km Diam Diameter 78- 86 A9 km D1/D2 (D1/D2) for combined events 88-110 A23 --- Loc Location for combined events 112 A1 --- C1 [Y] Y: in the C1 sample 114 A1 --- C2 [Y] Y: in the C2 sample 116 A1 --- C3 [Y] Y: in the C3 sample 118 A1 --- C4 [Y] Y: in the C4 sample 120 A1 --- C5 [Y] Y: in the C5 sample 122 A1 --- C6 [Y] Y: in the C6 sample
Acknowledgements: Lauri J. Jetsu
(End) Patricia Bauer [CDS] 23-May-1997
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

catalogue service