Results 111 to 120 of about 225,144 (339)

Formation of the Leonid meteor stream and storm [PDF]

It is well known that some meteor showers display a very high level of activity at certain times, the most famous being the Leonid shower with very spectacular displays at roughly 33 year intervals.
Williams, I. P., Wu, Zidian
core   +1 more source

Simultaneous Swift X-ray and UV views of comet C/2007 N3 (Lulin)

, 2012
We present an analysis of simultaneous X-Ray and UV observations ofcomet C/2007 N3 (Lulin) taken on three days between January 2009 and March 2009 using the Swift observatory.
A. M. Read, Beiersdorfer, Blush, Bodewits, Bodewits, Bodewits, Breeveld, Burrows, Carter, Cash, Christian, Collier, Combi, Cravens, D. Bodewits, Dennerl, Ezoe, Feldman, Festou, Gehrels, Geiss, Godet, Gosling, Haser, Huebner, J. A. Carter, Kharchenko, Kharchenko, Knight, Koutroumpa, Krasnopolsky, Krasnopolsky, Lin, Lisse, Lisse, Lisse, Lisse, Lisse, Mason, Mawhorter, Neugebauer, Ootsubo, Pagani, Parker, Poole, Richardson, Roming, S. Immler, Schleicher, Schwadron, Shi, Snowden, Stone, Wegmann, Wegmann, Willingale, Wolk, Zurbuchen   +57 more
core   +1 more source

Trabecular bone ontogeny of the human talus

The Anatomical Record, EarlyView.
Abstract Studies of trabecular ontogeny may provide insight into the factors that drive healthy bone development. There is a growing understanding of how the juvenile skeleton responds to these influences; however, gaps in our knowledge remain. This study aims to identify ontogenetic trabecular patterns and regional changes during development within ...
Rebecca A. G. Reid, Catriona Davies, Craig Cunningham   +2 more
wiley   +1 more source

Terrestrial Reproduction of the Spectra of the Tails of Recent Comets : (Plate 8.) [PDF]

, 1909
Allan Fowler
openalex   +1 more source

New Arabic Records From Cairo on Supernovae 1181 and 1006

Astronomische Nachrichten, EarlyView.
ABSTRACT The remnant of the historical supernova SN 1181 is under discussion: While the previously suggested G130.7+3.1 (3C58) appears too old (3000–5000 year), the unusual star IRAS00500+6713 with a surrounding nebula (Pa‐30) has an expansion age not inconsistent with a SN Iax explosion in ad 1181 under the assumption that neither acceleration nor ...
J. G. Fischer, H. Halm, R. Neuhäuser, D. L. Neuhäuser   +3 more
wiley   +1 more source

Observations of Halley's Comet [PDF]

, 1910
H. C. Wilson, R. E. Wilson
openalex   +2 more sources

On the Spectrum of the Daylight Comet 1910 a [PDF]

, 1910
H. F. Newall
openalex   +1 more source

The study of comets, part 1 [PDF]

Papers are presented dealing with observations of comets. Topic discussed include: photometry, polarimetry, and astrometry of comets; detection of water and molecular transitions in comets; ion motions in comet tails; determination of comet brightness ...
Ahearn, M., Donn, B., Harrington, R., Jackson, W. M., Mumma, M. J.   +4 more
core   +1 more source

Cost‐Efficient Autotrophic High‐Cell‐Density Cultivation of Cupriavidus necator Enabled by Model‐Based Gas Supply

Biotechnology and Bioengineering, EarlyView.
ABSTRACT Cultivating hydrogen‐oxidizing bacteria (HOB), such as Cupriavidus necator, using H 2 ${{\rm{H}}}_{2}$, CO 2 ${\text{CO}}_{2}$, and O 2 ${{\rm{O}}}_{2}$ offers a promising route for CO 2 ${\text{CO}}_{2}$ valorization into chemicals and materials. To enhance cultivation efficiency in a lab‐scale gas fermenter lacking a gas recycling system, an
Vera Lambauer, Clemens Hagenbuchner, Maximilian Graber, Helmar Wiltsche, Vanja Subotić, Christoph Hochenauer, Markus Reichhartinger, Regina Kratzer   +7 more
wiley   +1 more source

ASTRONOMY: COMET (a) 1831--SWIFT [PDF]

, 1881
John Ritchie
openalex   +1 more source