Results 11 to 20 of about 1,852 (121)

Comparison of Rutherford's atomic model with the Standard Model of particle physics and other models

Journal of the Royal Society of New Zealand, Volume 51, Issue 3-4, Page 538-556, September ‐ December 2021., 2021
ABSTRACT Ernest Rutherford is known almost universally as the discoverer of the structure of the atom. He is less well known for his discovery of the proton. Even less well known is a set of hypotheses on the structure of matter that was proposed by Newton 300 years ago.
Philip Yock
wiley   +1 more source

The Fundamental Connections between the Solar System and Exoplanetary Science

Journal of Geophysical Research: Planets, Volume 126, Issue 2, February 2021., 2021
Abstract Over the past several decades, thousands of planets have been discovered outside our Solar System. These planets exhibit enormous diversity, and their large numbers provide a statistical opportunity to place our Solar System within the broader context of planetary structure, atmospheres, architectures, formation, and evolution.
Stephen R. Kane, Giada N. Arney, Paul K. Byrne, Paul A. Dalba, Steven J. Desch, Jonti Horner, Noam R. Izenberg, Kathleen E. Mandt, Victoria S. Meadows, Lynnae C. Quick   +9 more
wiley   +1 more source

Planetary mass function and planetary systems [PDF]

, 2010
With planets orbiting stars, a planetary mass function should not be seen as a low-mass extension of the stellar mass function, but a proper formalism needs to take care of the fact that the statistical properties of planet populations are linked to the ...
Agresti, Albrow, Albrow, Barnes, Beaulieu, Bennett, Catala, Cohen, Collier Cameron, Dominik, Dominik, Dominik, Dominik, Dominik, Dominik, Dong, Gaudi, Gaudi, Gould, Gould, Griest, Ida, Kroupa, Kubas, Lo Curto, M. Dominik, Maciejewski, Marcy, Marcy, Marois, Mayor, O'Toole, O'Toole, Pollacco, Salpeter, Scalo, Snodgrass, Sumi, Tsapras, Tsapras, Udalski, Udry, Wright   +42 more
core   +1 more source

Free-floating Planet Mass Function from MOA-II 9 yr Survey toward the Galactic Bulge

The Astronomical Journal, 2023
We present the first measurement of the mass function of free-floating planets (FFPs), or very wide orbit planets down to an Earth mass, from the MOA-II microlensing survey in 2006–2014.
Takahiro Sumi, Naoki Koshimoto, David P. Bennett, Nicholas J. Rattenbury, Fumio Abe, Richard Barry, Aparna Bhattacharya, Ian A. Bond, Hirosane Fujii, Akihiko Fukui, Ryusei Hamada, Yuki Hirao, Stela Ishitani Silva, Yoshitaka Itow, Rintaro Kirikawa, Iona Kondo, Yutaka Matsubara, Shota Miyazaki, Yasushi Muraki, Greg Olmschenk, Clément Ranc, Yuki Satoh, Daisuke Suzuki, Mio Tomoyoshi, Paul . J. Tristram, Aikaterini Vandorou, Hibiki Yama, Kansuke Yamashita, MOA Collaboration   +28 more
doaj   +1 more source

ExELS: an exoplanet legacy science proposal for the ESA Euclid mission. II. Hot exoplanets and sub-stellar systems [PDF]

, 2006
The Exoplanet Euclid Legacy Survey (ExELS) proposes to determine the frequency of cold exoplanets down to Earth mass from host separations of ~1 AU out to the free-floating regime by detecting microlensing events in Galactic Bulge. We show that ExELS can
McDonald, I., Kerins, E., Penny, M., Beaulieu, J. -P., Batista, V., Novati, S. Calchi, Cassan, A., Fouque, P., Mao, S., Marquette, J. B., Rattenbury, N., Robin, A. C., Tisserand, P., Osorio, M. R. Zapatero   +13 more
core   +6 more sources

Possibility of Detection of Exomoons with Inclined Orbits Orbiting Pulsar Planets Using the Time‐of‐Arrival Analysis

Advances in Astronomy, Volume 2014, Issue 1, 2014., 2014
The perturbation caused by planet‐moon binarity on the time‐of‐arrival (TOA) signal of a pulsar with an orbiting planet is derived for the case of the orbit of the planet‐moon system inclined of an angle α with respect to the plane of the orbit of the planet‐moon barycenter around the pulsar.
Antonio Pasqua, Khudhair A. Assaf, Gary Wegner   +2 more
wiley   +1 more source

Confirmation of Color-dependent Centroid Shift Measured After 1.8 Years with HST

The Astronomical Journal, 2023
We measured the precise masses of the host and planet in the OGLE-2003-BLG-235 system, when the lens and source were resolving, with 2018 Keck high resolution images.
Aparna Bhattacharya, David P. Bennett, Jean Philippe Beaulieu, Ian A. Bond, Naoki Koshimoto, Jessica R. Lu, Joshua W. Blackman, Clément Ranc, Aikaterini Vandorou, Sean K. Terry, Jean Baptiste Marquette, Andrew A. Cole, Akihiko Fukui   +12 more
doaj   +1 more source

Ogle-2018-blg-0677lb: A super earth near the galactic bulge [PDF]

, 2020
We report the analysis of the microlensing event OGLE-2018-BLG-0677. A small feature in the light curve of the event leads to the discovery that the lens is a star-planet system. Although there are two degenerate solutions that could not be distinguished
Albrow, M. D., Cha, S. -M., Chung, S. -J., Gould, A., Han, C., Herrera-Martín, Antonio, Hwang, K. -H., Iwanek, P., Jung, Y. K., Kim, D. -J., Kim, H. -W., Kim, S. -L., Kozłowski, S., Lee, C. -U., Lee, D. -J., Lee, Y., Mróz, P., Park, B. -G., Pietrukowicz, P., Pogge, R. W., Poleski, R., Rybicki, K., Ryu, Y. -H., Shin, I. -G., Shvartzvald, Y., Skowron, J., Soszyński, I., Szymański, M. K., Udalski, A., Ulaczyk, K., Wrona, M., Yee, J. C., Zang, W.   +32 more
core   +2 more sources

Robotic Astronomy with the Faulkes Telescopes and Las Cumbres Observatory Global Telescope

Advances in Astronomy, Volume 2010, Issue 1, 2010., 2010
We present results from ongoing science projects conducted by members of the Faulkes Telescope (FT) team and Las Cumbres Observatory Global Telescope (LCOGT). Many of these projects incorporate observations carried out and analysed by FT users, comprising amateur astronomers and schools.
Fraser Lewis, Rachel Street, Paul Roche, Vanessa Stroud, David M. Russell, Alberto J. Castro-Tirado   +5 more
wiley   +1 more source

KMT-2022-BLG-2397: Brown Dwarf at the Upper Shore of the Einstein Desert

The Astronomical Journal, 2023
We measure the Einstein radius of the single-lens microlensing event KMT-2022-BLG-2397 to be θ _E = 24.8 ± 3.6 μ as, placing it at the upper shore of the Einstein Desert, 9 ≲ θ _E / μ as ≲ 25, between free-floating planets (FFPs) and bulge brown dwarfs ...
Andrew Gould, Yoon-Hyun Ryu, Jennifer C. Yee, Michael D. Albrow, Sun-Ju Chung, Cheongho Han, Kyu-Ha Hwang, Youn Kil Jung, In-Gu Shin, Yossi Shvartzvald, Hongjing Yang, Weicheng Zang, Sang-Mok Cha, Dong-Jin Kim, Seung-Lee Kim, Chung-Uk Lee, Dong-Joo Lee, Yongseok Lee, Byeong-Gon Park, Richard W. Pogge, The KMTNet Collaboration   +20 more
doaj   +1 more source