Dan Christensen, 64, a painter who stretched the styles of the New York School by using a spray gun to apply loops of colors onto canvas, died Jan. 20 in East Hampton, N.Y., of heart failure resulting from a muscle disease, according to the Spanierman Modern gallery in Manhattan, which is exhibiting his work.
Christensen's works, which sell for up to $150,000 each, also have been exhibited at the Museum of Modern Art and the Whitney Museum of American Art, both in New York, and the Fine Arts Museum of San Francisco.

