HL Tau 76 Fourier Transforms
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HLT 76 Xcov18 DFT (1-130)
99/11/21 20:22:08 UT
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1000 - 1050 microHz
HLT 76 Xcov18 DFT (1-130)
99/11/21 20:20:36 UT
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1230 - 1280 microHz
HLT 76 Xcov18 DFT (1-130)
99/11/21 20:20:04 UT
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1490 - 1540 microHz
HLT 76 Xcov18 DFT (1-130)
99/11/21 20:19:33 UT
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1650 - 1700 microHz
HLT 76 Xcov18 DFT (1-130)
99/11/21 20:19:04 UT
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1820 - 1870 microHz
HLT 76 Xcov18 DFT (1-130)
99/11/21 20:18:22 UT
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2000 - 2050 microHz
HLT 76 Xcov18 DFT (1-130)
99/11/21 20:17:39 UT
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2420 - 2470 microHz
HLT 76 Xcov18 DFT (1-130)
99/11/21 20:16:34 UT
--Full-sized GIF
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2590 - 2640 microHz
HL Tau over the Years (1-130)
99/11/21 19:43:08 UT
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Includes Xcov18 final (1-130) DFT
HL Tau 76 Xcov18 (1-89) by Halfs
99/11/12 08:20:14 UT
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First half contains data through tsm-0056, ending
about 6 Nov 99 12:00:00
HL Tau 76 Xcov18 (1-73) DFT
99/11/11 07:35:21 UT
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2590 - 2640 microHz
More resolved than in (1-45).
A nice single peak. sum of
937 + 1675 microHz modes.
HL Tau 76 Xcov18 (1-73) DFT
99/11/11 07:33:53 UT
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2420 - 2470 microHz
More resolved than in (1-45).
Sum of 930 + 1500 stuff?
HL Tau 76 Xcov18 (1-73) DFT
99/11/11 07:31:13 UT
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2000 - 2050 microHz
More resolved than in (1-45).
2 modes - ~4.1microHz apart
HL Tau 76 Xcov18 (1-73) DFT
99/11/11 07:29:31 UT
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1820 - 1870 microHz
More resolved than in (1-45).
Appears to be sum of 920-970 region.
HL Tau 76 Xcov18 (1-73) DFT
99/11/11 07:28:21 UT
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1650 - 1700 microHz
More resolved than in (1-45).
Dominant single peak with maybe more.
HL Tau 76 Xcov18 (1-73) DFT
99/11/11 07:26:55 UT
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1490 - 1540 microHz
Significant difference from
(1-45) DFT. Has 5-peak spacing
similar to 920-970 region, plus some!
HL Tau 76 Xcov18 (1-73) DFT
99/11/11 07:24:55 UT
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1230 - 1280 microHz
Looks less resolved than in
(1-45) DFT (although neither
are really resolved fully)
HL Tau 76 Xcov18 (1-73) DFT
99/11/11 07:21:27 UT
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1000 - 1050 microHz
Similar pattern as the 920-970 region
HL Tau 76 Xcov18 (1-73) DFT
99/11/11 07:19:30 UT
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920 - 970 microHz
More resolved than in (1-45) DFT, but still 4/5 peaks spaced
about 1/runlength apart.
HL Tau 76 Over the Years (1-45)
99/11/09 10:48:33 UT
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Includes Xcov18 DFT (1-45) with all data through hl1108oj.
HL Tau 76 DFT (1-45)
99/11/09 09:59:50 UT
--Full-sized GIF
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2590 - 2640 microHz
HL Tau 76 DFT (1-45)
99/11/09 09:59:10 UT
--Full-sized GIF
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2420 - 2470 microHz
HL Tau 76 DFT (1-45)
99/11/09 09:58:51 UT
--Full-sized GIF
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2000 - 2050 microHz
HL Tau 76 DFT (1-45)
99/11/09 09:58:28 UT
--Full-sized GIF
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1820 - 1870 microHz
HL Tau 76 DFT (1-45)
99/11/09 09:58:05 UT
--Full-sized GIF
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1650 - 1700 microHz
HL Tau 76 DFT (1-45)
99/11/09 09:57:34 UT
--Full-sized GIF
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1490 - 1540 microHz
HL Tau 76 DFT (1-45)
99/11/09 09:57:02 UT
--Full-sized GIF
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1230 - 1280 microHz
HL Tau 76 DFT (1-45)
99/11/09 09:56:29 UT
--Full-sized GIF
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1000-1050 microHz
HL Tau 76 DFT (1-45)
99/11/09 09:53:58 UT
--Full-sized GIF
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--Gzipped Postscript Version
920 - 970 microHz
HL Tau 76 Over the Years
99/11/05 06:46:20 UT
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This includes X18 DFT with data
through teide02. The previous
one had suh-81 with the time
incorrect.
HL Tau 76 over the Years
99/11/04 04:36:19 UT
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Xcov18 data includeschunks 1-17 (all data through jxj-9938)
HL Tau 76 Xcov18 (1-73) Window
99/11/11 07:16:32 UT
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50 microHz X-axis range
HL Tau 76 DFT (1-45) Window
99/11/09 10:00:15 UT
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50 microHz scale
All data thru mdr073
99/11/08 17:28:13 UT
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This plot shows consecutive prewhitening steps of the HL Tau 76 power spectra. It exhibits a number of interesting features, e.g. the structures near 940 and 1510 microHz are (at least) quintuplets. The last prewhitening step is somewhat daring, but it is mainly intended to show that there are quite a few more modes waiting to be discovered.
All data through teide02
99/11/05 10:44:10 UT
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This plot shows consecutive prewhitening steps of the HL Tau 76 power spectra. Peaks to be removed are labeled with arrows. Some of the high-power regions are not quite resolved yet; therefore the results may change as the data set becomes larger. Still, it is a promising beginning.
O-C for 4 modes in HL Tau
99/11/18 17:09:24 UT
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O-C for 4 largest-amplitude modes in HL Tau, fit simultaneously via NLLS.
Note the clean behavior of the combination mode and the
"singlets" - except for the 1849.
Amplitude vs. time, HL Tau, top 2 modes
99/11/15 23:56:23 UT
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Here is the companion amplitude plot for the O-C plot of HL Tau 76. Some waviness - no gravy.
O-C for two modes in HL Tau 76
99/11/14 23:05:54 UT
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O-C for the 1848 and 2023 uHz
modes (fit together). Note
the possible phase jump in the 1848 (which is now a singlet) that isn't in the 2023... curious. All data through 11/14 -ish.
McDonald vs Hawaii
99/11/11 05:26:36 UT
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Loiano vs OHP
99/11/11 00:53:33 UT
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BAO vs. Hawaii
99/11/10 04:50:34 UT
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HL Tau 76 (1-45) Window with and without suh-79
99/11/09 09:08:01 UT
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Not much difference
OHP vs McDonald
99/11/05 23:27:55 UT
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Shifted Overlap of suh-81 and jxj-9937
99/11/13 03:57:00 UT
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The same data (but summed 60s) as plotted in the BAO vs. Suhora plot but with the one curve shiftedin time precisely one hour.Twilight in the jxj-9937 data agrees with when twilight should occur, but the moonrise in suh-81 appears about 1 hour off (in the right direction) of what skycalc tells us.
Suh-81 Teide01 Overlap
99/11/04 07:18:16 UT
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????
suh-81 had clouds and
teide01 overlap with tsm-0052
looks ok.
BAo vs Suhora
99/11/03 21:33:08 UT
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Phases seem to disagree
Tenerife vs McDonald
99/11/03 21:30:12 UT
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Go To HL Tau 76 Light Curves Page
