SPT0615-JD | |
---|---|
Observation data (J2000 epoch) | |
Constellation | Pictor [1] |
Right ascension | 06h 15m 55.03s [2] |
Declination | −57° 46′ 19.56″ [2] |
Redshift | 9.9 [3] |
Distance | 13.27 billion light-years (light travel time)
[3] 31.4 billion light-years (comoving distance) |
Characteristics | |
Mass | ~3 ×109 [2] M☉ |
Size | < 2,500 ly [2] |
Apparent size (V) | 0.00065 x 0.00065 |
Other designations | |
RELICS SPT-CL J0615-5746 336, SCB2018 SPTJ0615-JD1 |
SPT0615-JD is a dwarf galaxy situated within the constellation Pictor, and is the farthest galaxy ever imaged by means of gravitational lensing, as of 2018. [1] [3] Brett Salmon of the Space Telescope Science Institute in Baltimore was the lead scientist of the study of the galaxy. [2]
The galaxy was identified in the Hubble Space Telescope Reionization Lensing Cluster Survey (RELICS) and companion S-RELICS Spitzer program and is at the limits of Hubble's detection capabilities. [2] As a consequence of the effect of a gravitational field of a galaxy cluster of an extremely large size, [2] SPT-CL J0615-5746, (abbreviated to SPT0615), [1] situated at a distance closer to Earth, light from SPT0615-JD located at a further distance, is amplified and distorted (lensed - Einstein 1936; Khvolson 1924; Link 1936) on its motion to the Hubble telescope. This distortion causes the light from the galaxy to arrive as an image lengthened to an arc of about 2 arcseconds long. [2]
"JD" is short for "J-band Dropout" (the galaxy is not detected in the so-called J-band (F125W) [4] The observed image is of 13.3 billion years ago, indicating the galaxy existed when the universe was about only 500 million years in existence. [2] The galaxy is less than 2,500 light-years across. [2]
SPT0615-JD | |
---|---|
Observation data (J2000 epoch) | |
Constellation | Pictor [1] |
Right ascension | 06h 15m 55.03s [2] |
Declination | −57° 46′ 19.56″ [2] |
Redshift | 9.9 [3] |
Distance | 13.27 billion light-years (light travel time)
[3] 31.4 billion light-years (comoving distance) |
Characteristics | |
Mass | ~3 ×109 [2] M☉ |
Size | < 2,500 ly [2] |
Apparent size (V) | 0.00065 x 0.00065 |
Other designations | |
RELICS SPT-CL J0615-5746 336, SCB2018 SPTJ0615-JD1 |
SPT0615-JD is a dwarf galaxy situated within the constellation Pictor, and is the farthest galaxy ever imaged by means of gravitational lensing, as of 2018. [1] [3] Brett Salmon of the Space Telescope Science Institute in Baltimore was the lead scientist of the study of the galaxy. [2]
The galaxy was identified in the Hubble Space Telescope Reionization Lensing Cluster Survey (RELICS) and companion S-RELICS Spitzer program and is at the limits of Hubble's detection capabilities. [2] As a consequence of the effect of a gravitational field of a galaxy cluster of an extremely large size, [2] SPT-CL J0615-5746, (abbreviated to SPT0615), [1] situated at a distance closer to Earth, light from SPT0615-JD located at a further distance, is amplified and distorted (lensed - Einstein 1936; Khvolson 1924; Link 1936) on its motion to the Hubble telescope. This distortion causes the light from the galaxy to arrive as an image lengthened to an arc of about 2 arcseconds long. [2]
"JD" is short for "J-band Dropout" (the galaxy is not detected in the so-called J-band (F125W) [4] The observed image is of 13.3 billion years ago, indicating the galaxy existed when the universe was about only 500 million years in existence. [2] The galaxy is less than 2,500 light-years across. [2]