Results 61 to 70 of about 4,433 (297)

Kepler-62:a five-planet system with planets of 1.4 and 1.6 Earth radii in the habitable zone [PDF]

, 2013
We present the detection of five planets - Kepler-62b, c, d, e, and f - of size 1.31, 0.54, 1.95, 1.61 and 1.41 Earth radii (R⊕), orbiting a K2V star at periods of 5.7, 12.4, 18.2, 122.4, and 267.3 days, respectively.
Ford, Eric B., Winn, Joshua N., Fressin, Francois, Borucki, William J., DeVore, Edna, Lopez, Eric, Kjeldsen, Hans, Latham, David W., Howell, Steve B., Charbonneau, David, Fischer, Debra, Prsa, Andrej, Everett, Mark E., Kolbl, Rea, Lee, Brian L., Gautier, Thomas N., Orosz, Jerome A., Agol, Eric, Howard, Andrew W., Still, Martin, Christiansen, Jessie L., Haas, Michael, Christensen-Dalsgaard, Jørgen, Gautier, Thonas N., Christensen-Dalsgaard, Jorgen, Carter, Josh, Bastien, Fabienne, Rowe, Jason, Seader, Shawn, Twicken, Joseph D., Saacson, Howard, Fortney, Jonathan, Thompson, Susan E., Henze, Christopher, Dupree, Andrea K., Kaltenegger, Lisa, Jenkins, Jon M., Lissauer, Jack J., Désert, Jean-Michel, Marcy, Geoffrey W., Quintana, Elisa V., Endl, Michael, Sasselov, Dimitar, Desert, Jean Michel, Brugamyer, Erik, Ciardi, David, Kolodziejczak, Jeffery, Tenenbaum, Peter, Cochran, William D., Shporer, Avi, Steffen, Jason H., Geary, John C., Fabrycky, Daniel, Boss, Alan, Gould, Alan, Barclay, Thomas, Mullally, Fergal, Isaacson, Howard, Welsh, William F., Bryson, Stephen T., Burke, Chris, Huber, Daniel, Batalha, Natalie, Sanchis-Ojeda, Roberto, Caldwell, Douglas A., Crepp, Justin R., Doyle, Laurance, Buchhave, Lars A., Torres, Guillermo   +68 more
core   +1 more source

Bioverse: The Habitable Zone Inner Edge Discontinuity as an Imprint of Runaway Greenhouse Climates on Exoplanet Demographics

The Planetary Science Journal
Long-term magma ocean phases on rocky exoplanets orbiting closer to their star than the runaway greenhouse threshold—the inner edge of the classical habitable zone—may offer insights into the physical and chemical processes that distinguish potentially ...
Martin Schlecker, Dániel Apai, Tim Lichtenberg, Galen Bergsten, Arnaud Salvador, Kevin K. Hardegree-Ullman   +5 more
doaj   +1 more source

Task‐Oriented Path Planning Towards Autonomous Sensor Network Deployment in Rainforest Canopies

Advanced Robotics Research, EarlyView.
An informative path planner for drone‐based deployment of wireless sensor networks in rainforest canopies is presented, addressing key challenges in large‐scale biodiversity monitoring. By integrating canopy surface detection with connectivity‐aware sampling under strict flight constraints, the approach enables efficient and reliable aerial sensor ...
Rita Santos Raminhos, Salua Hamaza
wiley   +1 more source

55 Cancri: Stellar Astrophysical Parameters, a Planet in the Habitable Zone, and Implications for the Radius of a Transiting Super-Earth [PDF]

, 2011
International audienceThe bright star 55 Cancri is known to host five planets, including a transiting super-Earth. The study presented here yields directly determined values for 55 Cnc's stellar astrophysical parameters based on improved interferometry: $
Kane, Stephen R., Sturmann, Laszlo, Stephen T. Ridgway, Goldfinger, P. J., Raymond, Sean N., Theo A. ten Brummelaar, Brummelaar, Theo A. Ten, Ciardi, David R., Mercedes López-Morales, Kaspar von Braun, Stephen R. Kane, Ridgway, Stephen T., Gail Schaefer, Boyajian, Tabetha S., Lopez-Morales, Mercedes, Nils H. Turner, von Braun, Kaspar, Mcalister, Harold A., Chris Farrington, Harold A. McAlister, Russel White, Lόpez-Morales, Mercedes, S. Boyajian Tabetha, Sturmann, Judit, Sean N. Raymond, ten Brummelaar, Theo A., White, Russel, Schaefer, Gail, Laszlo Sturmann, Judit Sturmann, Gerard T. van Belle, P. J. Goldfinger, Turner, Nils H., Farrington, Chris, van Belle, Gerard T., David R. Ciardi   +35 more
core   +1 more source

The ultraviolet habitable zone of exoplanets

Monthly Notices of the Royal Astronomical Society, 2023
ABSTRACT The dozens of rocky exoplanets discovered in the circumstellar habitable zone (CHZ) currently represent the most suitable places to host life as we know it outside the Solar system. However, the presumed presence of liquid water on the CHZ planets does not guarantee suitable environments for the emergence of life.
Spinelli R., Borsa F., Ghirlanda G., Ghisellini G., Haardt F.   +4 more
openaire   +4 more sources

A Pentaradial and Bilateral Combined Photoreception System in the Sea Cucumber is Mediated by a Blue Light‐Sensitive R‐Opsin

Advanced Science, EarlyView.
The sea cucumber Holothuria leucospilota detects blue and adjacent wavelengths of light via an r‐opsin with a maximum absorption at 459 nm. In the oral tentacles, papillae, and tube feet, distinct light‐sensing structures with specialized morphologies are formed, constituting a unique pentaradial and bilateral combined photoreception system.
Jiasheng Huang, Chunhua Ren, Zhou Qin, Yimeng Cui, Bingbing Zhang, Peng Luo, Xuan Wang, Yaoqi Xie, Xin Zhang, Aifen Yan, Yang Zhang, Dingding Fan, Yang Liu, Wenjie Pan, Xiao Jiang, Lihong Yuan, Haipeng Qin, David M. Irwin, Chaoqun Hu, Yang Liu, Ting Chen   +20 more
wiley   +1 more source

Continuous Habitable Zone Metric for Prioritizing Habitable Worlds Observatory Targets

The Astrophysical Journal
Future direct imaging space telescopes, such as NASA’s Habitable Worlds Observatory (HWO), will be the first capable of both detecting and characterizing terrestrial exoplanets in the habitable zones (HZs) of nearby Sun-like stars.
Austin Ware, Patrick Young
doaj   +1 more source

Ethical Precision in Nanoscale Brain Interfacing

Advanced Science, EarlyView.
As brain interfaces approach the nanoscale, precision no longer only measures—it knows, predicts, and potentially reshapes the mind. This work argues that traditional ethics fails under such conditions and proposes a shift toward continuous, operation‐based governance using the recovery–discovery framework to track, constrain, and responsibly steer ...
Guilherme Wood
wiley   +1 more source

HAZMAT. IX. An Analysis of the UV and X-Ray Evolution of Low-mass Stars in the Era of Gaia

The Astrophysical Journal, 2023
Low-mass stars (≤1 M _⊙ ) are some of the best candidates for hosting planets with detectable life because of these stars’ long lifetimes and relative ratios of planet to star mass and radius.
Tyler Richey-Yowell, Evgenya L. Shkolnik, Adam C. Schneider, Sarah Peacock, Lori A. Huseby, James A. G. Jackman, Travis Barman, Ella Osby, Victoria S. Meadows   +8 more
doaj   +1 more source

A Volcanic Hydrogen Habitable Zone [PDF]

The Astrophysical Journal Letters, 2017
Abstract The classical habitable zone (HZ) is the circular region around a star in which liquid water could exist on the surface of a rocky planet. The outer edge of the traditional N2–CO2–H2O HZ extends out to nearly ∼1.7 au in our solar system, beyond which condensation and scattering by CO2 outstrips its greenhouse capacity.
Ramirez, Ramses, Kaltenegger, Lisa
openaire   +2 more sources