Question: Are Chitra Banerjee Divakaruni and Jonathan Kellerman both authors?

Context paragraphs:
One Amazing Thing: One Amazing Thing is a 2010 novel by award-winning novelist and poet Chitra Banerjee Divakaruni.  It was first published in the United States in Voice by Hyperion 2009 and later published in Hamish Hamilton by Penguin Books India 2010.

Chitra Banerjee Divakaruni: Chitra Banerjee Divakaruni (born Chitralekha Banerjee, July 29, 1956) is an Indian-American author, poet, and the Betty and Gene McDavid Professor of Writing at the University of Houston Creative Writing Program.

The Conch Bearer: The Conch Bearer is a fantasy novel written by Chitra Banerjee Divakaruni.

Alex Delaware: Alex Delaware is a literary character created by Jonathan Kellerman.  The Alex Delaware detective series begins with "When the Bough Breaks", published in 1985.  Delaware appears in 32 of Kellerman's popular murder mysteries.  Kellerman sets the series in Los Angeles.  Delaware is a forensic psychologist; although Kellerman writes a back story in which Delaware practiced as a child psychologist.

Mera Naseeb: Mera Naseeb (Urdu: , English: My Fate‎ ) is a Hum TV drama which aired from 1 April 2011 to 26 August 2011.  The drama featured a huge ensemble star cast including Samina Peerzada, Sakina Samoo, Rubina Ashraf, Bushra Ansari, Shagufta Ejaz, Durdana Butt, Sajid Hassan, Adeel Hussain, Imran Abbas, Imran Aslam, Syra Yousuf, Sanam Saeed, Rehan Sheikh, Ali Afzal and Sabahat Bukhari.  Indian-American author Chitra Banerjee Divakaruni has accused the writers of the show of plagiarizing her novel "Sister of My Heart" for the story of the serial.  She has also threatened to take legal action against the writers of the show.  However the screenplay writer had mentioned earlier before the show's original run that it is a drama adaptation of a story provided to them.  Only recently it was mentioned the screenplay writers had no prior knowledge a plagiarized work was being provided to them to work with.

Mistress of Spices: The Mistress of Spices, (1997), set in contemporary Oakland, California, is a novel by Indian American writer and University of Houston Creative Writing Program professor Chitra Banerjee Divakaruni.

Jonathan Kellerman: Jonathan Kellerman (born August 9, 1949) is an American psychologist, and Edgar and Anthony Award-winning author of numerous bestselling suspense novels.

The Palace of Illusions: A Novel: The Palace of Illusions is a 2008 novel by award-winning novelist and poet Chitra Banerjee Divakaruni.  It was released by Picador.

The Mistress of Spices: The Mistress of Spices is a 2005 film by Paul Mayeda Berges, with a screenplay by Gurinder Chadha and Berges.  It is based upon the novel "Mistress of Spices" by Chitra Banerjee Divakaruni.  The film stars Aishwarya Rai.  The soundtrack was created by Craig Pruess, who also contributed to the "Bend It Like Beckham" soundtrack.

Sister of My Heart: Sister of My Heart is a novel by Chitra Banerjee Divakaruni.  First published in 1999, this novel was followed in 2002 by a sequel "The Vine of Desire".

Supporting paragraphs: Chitra Banerjee Divakaruni Jonathan Kellerman
Answer: yes