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Astronomical Data
Published on Jan 23, 20124400 Views
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Chapter list
Astronomical Data00:00
Outline00:49
What is/was SDSS?01:42
A telescope (with a 2.5m diameter primary mirror) at Apache Point, New Mexico01:44
30 2048 x 2048 CCDs in the focal plane01:47
Lots of Liquid Nitrogen and Electronics01:53
Lots of Software01:56
Example: Finding z ~ 6 Quasars01:57
z = 1:6502:42
z = 6:0003:12
QSO target selection (1)03:31
QSO target selection (2)04:17
Why isn’t this Easy?05:32
Objects Are Blended05:54
Not all Point Sources are Point Sources07:05
High-z QSOs are neither Common nor Bright (1)08:47
High-z QSOs are neither Common nor Bright (2)09:52
High-z QSOs are neither Common nor Bright (3)10:01
All that Glistens isn’t Gold (1)10:41
All that Glistens isn’t Gold (2)11:13
Is Anything Left?12:24
What do astronomers measure?12:41
Pictures (1)13:04
Pictures (2)13:35
Pictures (3)13:51
Catalogues (1)17:56
Catalogues (2)18:22
What are those rows? (1)18:55
What are those rows? (2)19:35
What are those rows? (3)20:45
An SDSS frame21:03
A reconstructed SDSS frame21:19
Catalogues (3)23:30
Catalogues (4)23:37
Catalogues (5)23:43
Catalogues (6)23:46
Catalogues (7)23:56
“Level III”; extra large-scale computing (1)23:59
“Level III”; extra large-scale computing (2)24:04
“Level III”; extra large-scale computing (3)24:06
“Level III”; extra large-scale computing (4)25:14
Pictures (4)25:15
Pictures (5)25:25
Next generation datasets (1)25:35
Next generation datasets (2)25:38
DES (1)25:51
DES (2)26:02
LSST (1)26:16
LSST (2)26:24
What are the challenges doing Big Astronomy? (1)26:44
What are the challenges doing Big Astronomy? (2)26:49
What are the challenges doing Big Astronomy? (3)26:56
What are the challenges doing Big Astronomy? (4)26:59
What are the challenges doing Big Astronomy? (5)27:00
Large Samples: Emission Lines (1)27:51
Large Samples: Emission Lines (2)28:00
Large Samples: Statistics (1)28:07
Large Samples: Statistics (2)28:14
Rare Objects29:02
Quality Control (1)29:08
Quality Control (2)29:27
Quality Control (3)29:32
Quality Control (4)29:57
Quality Control (5)29:59
Quality Control (6)30:06
Quality Control (7)30:22