Question: Were Ryūnosuke Akutagawa and Carl Sagan both writers?

Context articles: Hell Screen
Akutagawa Prize
Rashomon
A Note to a Certain Old Friend
Tsuneari Fukuda
Dragon: the Old Potter's Tale
Carl Sagan
Autumn Mountain
Yasushi Akutagawa
Ryūnosuke Akutagawa

Hell Screen (地獄変 , Jigokuhen ) is a short story written by Japanese writer Ryūnosuke Akutagawa.
 It was originally published in 1918 as a serialization in two newspapers.
 It was later published in a collection of Akutagawa short stories, "Akutagawa Ryūnosuke zenshū".
The Akutagawa Prize (芥川龍之介賞 , Akutagawa Ryūnosuke Shō ) is a Japanese literary award presented semi-annually.
 It was established in 1935 by Kan Kikuchi, then-editor of "Bungeishunjū" magazine, in memory of author Ryūnosuke Akutagawa.
 It is currently sponsored by the Society for the Promotion of Japanese Literature, and is awarded in January ('E' in the list, below) and July ('L' in the list below) to the best serious literary story published in a newspaper or magazine by a new or rising author.
Rashomon (羅生門 , Rashōmon ) is a 1950 Japanese period film directed by Akira Kurosawa, working in close collaboration with cinematographer Kazuo Miyagawa.
 It stars Toshiro Mifune, Machiko Kyō, Masayuki Mori, and Takashi Shimura.
 While the film borrows the title and setting from Ryūnosuke Akutagawa's short story "Rashōmon", it is actually based on Akutagawa's short story "In a Grove", which provides the characters and plot.
A Note to a Certain Old Friend (或旧友へ送る手記 , Aru Kyūyū he Okuru Shuki ) is the title of the suicide note left by the famed Japanese short story writer, Ryūnosuke Akutagawa.
 This was the last thing Akutagawa wrote before he committed suicide at the age of 35 in 1927.
 The letter was addressed to his close friend and fellow writer Masao Kume.
Tsuneari Fukuda (福田 恆存 , Fukuda Tsuneari , 1912 – 1994) was a Japanese dramatist, translator, and literary critic.
 In the 1950s he became known for his satirical play "Kitty Typhoon" and also "The Man Who Stroked a Dragon".
 He was linked to Shingeki and in 1955 he did a production of "Hamlet" with Hiroshi Akutagawa, son of Ryūnosuke Akutagawa, playing the lead role.
 He also wrote a 1957 essay "Directing Shakespeare" which dealt with his views on the subject of directing Shakespearean plays.
 Later he did a Japanese version, based on his translation, of "A Midsummer Night's Dream".
 In addition he helped found the Theatre Company Subaru and received the Yomiuri Prize multiple times.
 Another notable translator of the time, Junji Kinoshita, was quite famous as well.
"Dragon: the Old Potter’s Tale" (龍 , Ryū ) is a short story by Ryūnosuke Akutagawa.
 It was first published in a collection of Akutagawa short stories, "Akutagawa Ryūnosuke zenshū".
 The story is based on a thirteenth-century Japanese tale, with Akutagawa’s Taishō literary interpretations of modern psychology and the nature of religion.
Carl Edward Sagan ( ; November 9, 1934 – December 20, 1996) was an American astronomer, cosmologist, astrophysicist, astrobiologist, author, science popularizer, and science communicator in astronomy and other natural sciences.
 He is best known for his work as a science popularizer and communicator.
 His best known scientific contribution is research on extraterrestrial life, including experimental demonstration of the production of amino acids from basic chemicals by radiation.
 Sagan assembled the first physical messages sent into space: the Pioneer plaque and the Voyager Golden Record, universal messages that could potentially be understood by any extraterrestrial intelligence that might find them.
 Sagan argued the now accepted hypothesis that the high surface temperatures of Venus can be attributed to and calculated using the greenhouse effect.
Autumn Mountain (秋山 , Akiyama ) is a 1921 short story by Japanese writer Ryūnosuke Akutagawa.
 Akutagawa first published the story when he was twenty-nine.
 The story tells the tale of a painting, supposed to be the greatest ever made.
 However, when the speaker sees the painting, it does not meet the expectations of the promised masterpiece of unparalleled beauty.
 However, even though the speaker does not know if the painting actually exists, he realizes that he can see the beauty in his mind.
 In the short story, Akutagawa deals with the subjects of truth and beauty.
Yasushi Akutagawa (芥川 也寸志 , Akutagawa Yasushi , July 12, 1925 — January 31, 1989) was a Japanese composer and conductor.
 He was born and raised in Tabata, Tokyo.
 His father was Ryūnosuke Akutagawa.
Ryūnosuke Akutagawa (芥川 龍之介 , Akutagawa Ryūnosuke , 1 March 1892 – 24 July 1927) was a Japanese writer active in the Taishō period in Japan.
 He is regarded as the "Father of the Japanese short story" and Japan's premier literary award, the Akutagawa Prize, is named after him.
 He committed suicide at the age of 35 through an overdose of barbital.