Results 91 to 100 of about 1,832,653 (172)

"Troponinosis", the Cardiologist's Curse-When Clinic-Laboratory Interaction Unveils the Mystery: A Case Report. [PDF]

J Cardiovasc Dev Dis, 2023
Bosi D, Canovi S, Pennacchioni A, Demola P, Corradini M, Guiducci V, Colla R, Navazio A.   +7 more
europepmc   +1 more source

Observables and Goals for Coronagraphic Characterization of Earth Analogs [PDF]

, 2012
On a suitably large and stable telescope, direct coronagraphic imaging can make numerous important measurements of terrestrial exoplanets. Astrometric time-series observations will be of primary importance: Only when the planet orbital elements are known
Stapelfelt, Karl R.
core  

The Quasi-radial Field-line Tracing (QRaFT): An Adaptive Segmentation of the Open-flux Solar Corona

The Astrophysical Journal
Optical observations of the solar corona provide key information on its magnetic geometry. The large-scale open field of the corona plays an important role in shaping the ambient solar wind and constraining the propagation dynamics of the embedded ...
Vadim M. Uritsky, Christopher E. Rura, Cooper Downs, Shaela I. Jones, Charles Nickolos Arge, Nathalia Alzate   +5 more
doaj   +1 more source

Imaging low-mass planets within the habitable zone of α Centauri. [PDF]

Nat Commun, 2021
Wagner K, Boehle A, Pathak P, Kasper M, Arsenault R, Jakob G, Käufl U, Leveratto S, Maire AL, Pantin E, Siebenmorgen R, Zins G, Absil O, Ageorges N, Apai D, Carlotti A, Choquet É, Delacroix C, Dohlen K, Duhoux P, Forsberg P, Fuenteseca E, Gutruf S, Guyon O, Huby E, Kampf D, Karlsson M, Kervella P, Kirchbauer JP, Klupar P, Kolb J, Mawet D, N'Diaye M, Orban de Xivry G, Quanz SP, Reutlinger A, Ruane G, Riquelme M, Soenke C, Sterzik M, Vigan A, de Zeeuw T.   +41 more
europepmc   +1 more source

Pushing the limits of the coronagraphic occulters on Hubble Space Telescope/Space Telescope Imaging Spectrograph

, 2019
The Hubble Space Telescope (HST)/Space Telescope Imaging Spectrograph (STIS) contains the only currently operating coronagraph in space that is not trained on the Sun.
Debes, John H., Schneider, Glenn, Ren, Bin   +2 more
core   +1 more source

HPIC: The Habitable Worlds Observatory Preliminary Input Catalog

The Astronomical Journal
The Habitable Worlds Observatory Preliminary Input Catalog (HPIC) is a list of ∼13,000 nearby bright stars that will be potential targets for the Habitable Worlds Observatory (HWO) in its search for Earth-sized planets around Sun-like stars. We construct
Noah W. Tuchow, Christopher C. Stark, Eric Mamajek   +2 more
doaj   +1 more source

Compressive Sensing Imaging Spectrometer for UV-Vis Stellar Spectroscopy: Instrumental Concept and Performance Analysis. [PDF]

Sensors (Basel), 2023
Nardino V, Guzzi D, Lastri C, Palombi L, Coluccia G, Magli E, Labate D, Raimondi V.   +7 more
europepmc   +1 more source

ESCAPE project: testing active observing strategies for high-contrast imaging in space on the HiCAT testbed

International audienceThe Roman Space Telescope will be a critical mission to demonstrate high-contrast imaging technologies allowing for the characterisation of exoplanets in reflected light.
Soummer, Rémi, Choquet, Élodie, Vigan, Arthur, Godoy, Nicolas, Laginja, Iva, Pueyo, Laurent, Lau, Alexis, Altinier, Lisa, Mary, David   +8 more
core   +1 more source

JWST/NIRCam Detection of the Fomalhaut C Debris Disk in Scattered Light

The Astrophysical Journal Letters
Observations of debris disks offer important insights into the formation and evolution of planetary systems. Though M dwarfs make up approximately 80% of nearby stars, very few M dwarf debris disks have been studied in detail—making it unclear how or if ...
Kellen Lawson, Joshua E. Schlieder, Jarron M. Leisenring, Ell Bogat, Charles A. Beichman, Geoffrey Bryden, András Gáspár, Tyler D. Groff, Michael W. McElwain, Michael R. Meyer, Thomas Barclay, Per Calissendorff, Matthew De Furio, Yiting Li, Marcia J. Rieke, Marie Ygouf, Thomas P. Greene, Julien H. Girard, Mario Gennaro, Jens Kammerer, Armin Rest, Thomas L. Roellig, Ben Sunnquist   +22 more
doaj   +1 more source

Speckle temporal stability in XAO coronagraphic images

, 2012
Context. The major source of noise limiting high-contrast imaging is caused by quasi-static speckles. Speckle noise originates from wavefront errors caused by various independent sources, and evolves on different timescales depending on their nature.
E. Aller Carpentier, C. Loose, Kasper, M., M. Kasper, Aller Carpentier, E., Loose, C., P. Martinez, Martinez, P.   +7 more
core   +1 more source