brown dwarf
noun
: a celestial object that is much smaller than a normal star and has insufficient mass to sustain nuclear fusion but that is hot enough to radiate energy especially at infrared wavelengths
Examples of brown dwarf in a Sentence
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This provides scientists with valuable data on how their formation compares to that of a star or brown dwarf, the term given to large gaseous planets that fail to develop into stars.
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Javier Carbajal, WIRED, 25 Mar. 2025
This binary rate drops to near zero for the smallest stars, so as stellar bodies with even smaller masses, there should be very little chance of finding brown dwarfs in binaries.
—Robert Lea, Space.com, 10 Mar. 2025
Thus, if free-floating planetary mass objects are indeed brown dwarfs, the sheer number of them seen as binary systems is difficult to explain.
—Robert Lea, Space.com, 10 Mar. 2025
In contrast, stars, including brown dwarfs, form on their own within giant collapsing clouds of gas.
—Byadam Mann, science.org, 6 Nov. 2024
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Javier Carbajal, WIRED, 25 Mar. 2025
This binary rate drops to near zero for the smallest stars, so as stellar bodies with even smaller masses, there should be very little chance of finding brown dwarfs in binaries.
—Robert Lea, Space.com, 10 Mar. 2025
Thus, if free-floating planetary mass objects are indeed brown dwarfs, the sheer number of them seen as binary systems is difficult to explain.
—Robert Lea, Space.com, 10 Mar. 2025
In contrast, stars, including brown dwarfs, form on their own within giant collapsing clouds of gas.
—Byadam Mann, science.org, 6 Nov. 2024
See All Example Sentences for brown dwarf
Cite this Entry
“Brown dwarf.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/brown%20dwarf. Accessed 2 Apr. 2025.
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