Results 111 to 120 of about 274,344 (248)
Investigating the mechanism of aluminum resistance conferred by aluminum resistance protein 1
Protein Science, Volume 35, Issue 1, January 2026.Abstract Aluminum does not play any role in essential biological processes, but in acidic conditions it becomes biologically reactive and highly toxic even at low concentrations. Eukaryotes have developed numerous strategies for detoxification, one of which relies on membrane proteins.
Pavlo Stehantsev +7 more
wiley +1 more source
Status of the Calan-Hertfordshire Extrasolar Planet Search
EPJ Web of Conferences, 2013 In these proceedings we give a status update of the Calan-Hertfordshire Extrasolar Planet Search, an international collaboration led from Chile that aims to discover more planets around super metal-rich and Sun-like stars, and then follow these up with ...
Jordán Andres +12 more
doaj +1 more source
The Astronomical JournalWe present algorithms and software for constructing high-precision difference images to detect and measure transients, such as microlensing events, in crowded stellar fields using the Nancy Grace Roman Space Telescope.
Michael D. Albrow
doaj +1 more source
HST/FGS Photometry of Planetary Transits of HD 209458 [PDF]
AIP Conference Proceedings, 2004 We present the data, and modeling and analysis results from the photometric monitoring of five planetary transits of HD 209458 using the Fine Guidance Sensors (FGS) onboard the Hubble Space Telescope (HST). We have now included the output from all four FGS photometers in our data reduction and analysis increasing our S/N over our previous results.
openaire +1 more source
Searching for GEMS: Discovery and Characterization of Two Brown Dwarfs Around M Dwarfs
The Astronomical JournalBrown dwarfs bridge the gap between stars and planets, providing valuable insight into both planetary and stellar-formation mechanisms. Yet the census of transiting brown-dwarf companions, in particular around M-dwarf stars, remains incomplete. We report
Alexander Larsen +19 more
doaj +1 more source
Near-Infrared Transit Photometry of Extra-Solar Planet HAT-P-54b
, 2020 Haruka Tabata, Yoichi Itoh
openalex +2 more sources
Transit and secondary eclipse photometry in the near-infrared
, 2007 Near-infrared photometry of transiting extrasolar planets can be of great scientific value. It is however not straightforward to reach the necessary millimagnitude precision. Here we report on our attempts to observe transits and secondary eclipses of several extrasolar planets at 2.2 micron.
openaire +2 more sources
LHS 475 b: A Potential Venus Analog Orbiting a Nearby M Dwarf
The Astronomical JournalBased on photometric observations by TESS, we present the discovery of a potential Venus analog transiting LHS 475, an M3 dwarf located 12.5 pc from the Sun. The mass of the star is 0.274 ± 0.015 M _☉ .
Kristo Ment +17 more
doaj +1 more source
The stellar variability noise floor for transiting exoplanet photometry with PLATO [PDF]
, 2020 Brett M. Morris +4 more
openalex +1 more source
GJ 238 b: A 0.57 Earth Radius Planet Orbiting an M2.5 Dwarf Star at 15.2 pc
The Astronomical JournalWe report the discovery of the transiting planet GJ 238 b, with a radius of 0.566 ± 0.014 R _⊕ (1.064 ± 0.026 times the radius of Mars) and an orbital period of 1.74 days. The transit signal was detected by the TESS mission and designated TOI-486.01. The
Evan Tey +32 more
doaj +1 more source