国际射电天文研究中心的团队把一组神秘射电脉冲追溯到 GPM J071507-114153：一颗每八分钟自转一周的白矮星，与一颗类似太阳的 G 型星互相绕转。这是首次在白矮星绕类太阳星的系统中探测到射电脉冲——以往这类信号只在更小更冷的红矮星系统里见过。脉冲清晰到能看见白矮星沿轨道运动，因此可以确定辐射来自白矮星附近甚至其表面。团队用超级计算机处理了一百多小时射电数据来完成验证。
This is the first time the pulses are clear enough to see the white dwarf moving in its orbit around its companion, so we know that the pulsations are coming from a region close to the white dwarf, or possibly even from the white dwarf itself.