Results 21 to 30 of about 3,207,512 (305)

Connotations of scientific development of giant gas fields in China

Natural Gas Industry B, 2020
A giant gas field refers to a gas field with proved geological reserves of natural gas more than 30 billion cubic meters, peak annual output of natural gas more than 1 billion cubic meters, and a certain plateau period.
Caineng Zou, Jianlin Guo, Ailin Jia, Yunsheng Wei, Haijun Yan, Chengye Jia, Haifa Tang   +6 more
doaj   +1 more source

An ultrahot gas-giant exoplanet with a stratosphere [PDF]

Nature, 2017
Infrared radiation emitted from a planet contains information about the chemical composition and vertical temperature profile of its atmosphere. If upper layers are cooler than lower layers, molecular gases will produce absorption features in the ...
T. Evans, D. Sing, T. Kataria, J. Goyal, N. Nikolov, H. Wakeford, D. Deming, M. Marley, D. S. Amundsen, G. Ballester, J. Barstow, L. Ben-Jaffel, V. Bourrier, L. Buchhave, O. Cohen, D. Ehrenreich, A. G. Muñoz, G. Henry, H. Knutson, P. Lavvas, A. D. Étangs, N. Lewis, M. López-Morales, A. Mandell, J. Sanz-Forcada, P. Tremblin, R. Lupu   +26 more
semanticscholar   +1 more source

Breaking Degeneracies in Formation Histories by Measuring Refractory Content in Gas Giants

The Astrophysical Journal, 2023
Relating planet formation to atmospheric composition has been a long-standing goal of the planetary science community. So far, most modeling studies have focused on predicting the enrichment of heavy elements and the C/O ratio in giant planet atmospheres.
Yayaati Chachan, Heather A. Knutson, Joshua Lothringer, Geoffrey A. Blake   +3 more
doaj   +1 more source

Investigating Trends in Atmospheric Compositions of Cool Gas Giant Planets Using Spitzer Secondary Eclipses [PDF]

Astronomical Journal, 2019
We present new 3.6 and 4.5 μm secondary eclipse measurements for five cool (T ≲ 1000 K) transiting gas giant planets: HAT-P-15b, HAT-P-17b, HAT-P-18b, HAT-P-26b, and WASP-69b.
N. Wallack, H. Knutson, C. Morley, J. Moses, N. H. Thomas, D. Thorngren, D. Deming, J. D'esert, J. Fortney, J. Kammer   +9 more
semanticscholar   +1 more source

MOA-bin-29b: A Microlensing Gas-giant Planet Orbiting a Low-mass Host Star [PDF]

Astronomical Journal, 2019
We report the discovery of a gas-giant planet orbiting a low-mass host star in the microlensing event MOA-bin-29 that occurred in 2006. We find five degenerate solutions with the planet/host-star mass ratio of q ∼ 10−2.
I. Kondo, T. Sumi, D. Bennett, A. Udalski, I. Bond, N. Rattenbury, V. Bozza, Y. Hirao, D. Suzuki, N. Koshimoto, M. Nagakane, S. Miyazaki, F. Abe, R. Barry, A. Bhattacharya, M. Donachie, A. Fukui, H. Fujii, Y. Itow, Y. Kamei, M. Li, Y. Matsubara, T. Matsuo, Y. Muraki, C. Ranc, H. Shibai, H. Suematsu, D. Sullivan, P. Tristram, T. Yamakawa, A. Yonehara, P. Mróz, M. Szymański, I. Soszyński, K. Ulaczyk   +34 more
semanticscholar   +1 more source

Long-term Stability of Planetary Systems Formed from a Transitional Disk

The Astrophysical Journal, 2023
Transitional disks are protoplanetary disks with large and deep central holes in the gas, possibly carved by young planets. Dong & Dawson simulated systems with multiple giant planets that were capable of carving and maintaining such gaps during the disk
Rory Bowens, Andrew Shannon, Rebekah Dawson, Jiayin Dong   +3 more
doaj   +1 more source

Radial Velocities from the N2K Project: Six New Cold Gas Giant Planets Orbiting HD 55696, HD 98736, HD 148164, HD 203473, and HD 211810 [PDF]

Astronomical Journal, 2018
The N2K planet search program was designed to exploit the planet-metallicity correlation by searching for gas giant planets orbiting metal-rich stars. Here, we present the radial velocity measurements for 378 N2K target stars that were observed with the ...
K. Ment, D. Fischer, G. Bakos, A. Howard, H. Isaacson   +4 more
semanticscholar   +1 more source

H− Opacity and Water Dissociation in the Dayside Atmosphere of the Very Hot Gas Giant WASP-18b [PDF]

, 2018
We present one of the most precise emission spectra of an exoplanet observed so far. We combine five secondary eclipses of the hot Jupiter WASP-18b (Tday ∼ 2900 K) that we secured between 1.1 and 1.7 μm with the Wide Field Camera 3 instrument on board ...
J. Arcangeli, J. Désert, M. Line, J. Bean, V. Parmentier, K. Stevenson, L. Kreidberg, J. Fortney, M. Mansfield, A. Showman   +9 more
semanticscholar   +1 more source

The significance of coal-derived gas in major gas producing countries

Petroleum Exploration and Development, 2019
The core of coal-derived gas theory is that coal measure is the gas source, and the hydrocarbon generation of coal measure is dominated by gas and supplemented by oil, so discoveries in related basins are dominated by gas fields.
Jinxing DAI, Yunyan NI, Fengrong LIAO, Feng HONG, Limiao YAO   +4 more
doaj   +1 more source

Exploration status of the deep Sinian strata in the Sichuan Basin: Formation conditions of old giant carbonate oil/gas fields

Natural Gas Industry B, 2020
To construct a giant Sichuan gas province, it is in an urgent need of exploring new replacement areas with abundant natural gas resources and great exploration potential. In this paper, the formation conditions (e.g.
Wenzhi Zhao, Zecheng Wang, Hua Jiang, Xiaodong Fu, Wuren Xie, Anna Xu, Anjiang Shen, Shuyuan Shi, Shipeng Huang, Qingchun Jiang   +9 more
doaj   +1 more source