|||
20140829
计算源在天空中的时间
http://www.naic.edu/~astro/srctimes.shtml
20140722
Arecibo观测申请提交地址
http://www.naic.edu/science/proposals_set.htm
20140714
Arecibo接收机
http://www.naic.edu/science/generalinfo_set.htm
后端
http://www.naic.edu/~astro/backends.shtml
20140704
制定SHARP观测计划用的工具
http://www.dartmouth.edu/~physics/faculty/skycalc/flyer.html
20130925
流量密度$S$和强度$I$的关系
$S=\int I d\Omega$
反射面精度和效率的关系,Ruze公式
$\exp\left(-\left(\frac{4\pi\sigma}{\lambda}\right)^2\right)$
$\sigma$应小于$\lambda/20$。
对于干涉阵而言,合成时的位置精度也应满足Ruze公式。
天线电压形态
$V (s) = \int W(r) E(r) exp(2\pi i r\cdot s) \delta A$
20130924
CARMA观测的介绍
http://carma.astro.umd.edu/wiki/index.php/School2012#Lectures
20130922
Source # Obs. Runs T_1AU (K)
---------- ----------- ---------
CALLISTO 9 281 +- 28
CERES 11 274 +- 27
DAVIDA 2 319 +- 57
EGERIA 2 272 +- 27
GANYMEDE 8 240 +- 24
JUNO 5 328 +- 33
Mars (primary) 271
Mercury 2 379 +-127
Neptune (primary) 336
PALLAS 6 311 +- 31
TITAN 4 213 +- 21
Uranus (primary) 287
VESTA 9 258 +- 26
Evolved StarsSome of these sources have 10-20% long-period variability (Sandell 1994; Jenness et al. 2002), but are otherwise excellent calibration sources. Observed (mean) fluxes are derived from measurements with SHARC II since 2003.
Source # Obs. Runs Peak Flux(Jy/9" beam)
-------- ----------- ---------------------
CIT6 10 2.42+- 0.24
CRL618 10 19.4 +- 1.9
CRL2688 7 41.6 +- 4.2
IRC10216 13 24.4 +- 2.4
O_CET 7 2.33+- 0.23
OH231.8 13 17.6 +- 1.8
VYCMA 2 15.6 +- 1.8
BlazarsThese sources are compact, but highly variable.
Source Obs. Run # Meas. Peak Flux(Jy/9" beam)
-------- -------- ------- ---------------------
0420-014 2003 Jan 35 5.2+-1.6
0420-014 2004 Sep 1 0.9+-0.3
3C273 2003 Jan 10 2.2+-0.7
3C273 2003 Feb 2 2.4+-0.7
3C273 2004 Jan 6 1.3+-0.4
3C273 2004 Apr 2 0.8+-0.3
3C273 2004 Jun 2 0.8+-0.2
3C345 2003 Jan 4 1.0+-0.3
3C345 2003 Feb 1 0.9+-0.3
3C345 2003 Mar 7 0.8+-0.2
3C345 2004 Jan 3 1.2+-0.4
3C345 2004 Apr 3 1.1+-0.3
3C345 2004 Jun 3 0.7+-0.2
3C84 2003 Jan 5 0.8+-0.2
3C84 2003 Oct 1 1.4+-0.4
OJ287 2003 Jan 6 0.9+-0.2
Other Galactic and Extragalactic SourcesThese sources range from compact (ARP220) to multiple/extended (NGC 2071).
Source # Obs. Runs Peak Flux(Jy/9" beam)
--------- ----------- ---------------------
ARP220 17 10.2 +- 1.0
G34.3 6 434 +- 43
GL490 4 32.2 +- 3.2
HLTAU 7 15.9 +- 1.6
IRAS16293 9 127 +- 13
K-350 4 129 +- 14
L1551 3 45.2 +- 4.5
NGC2071 7 60.5 +- 6.1
NGC6334I 1 420 +-126
TWHYA 4 6.13+- 0.68
W3OH 3 160 +- 24
W75N 5 267 +- 27
定标方程(望远镜相应函数不是参数,是需要确定的函数(这是一个泛函问题)):
F = S * G * exp[A(tau225 - B) * airmass] / f(elevation)
F = flux in Jy
S = measured signal
G = flux conversion factor (units Jy/mV), a fit parameter
A, B = fit parameters
tau225 = JCMT polynomial fit to 225 GHz opacity from CSO radiometer
airmass = 1.0/sin(elevation)
f(elevation) = telescope response function, not a fit parameter
ln(F) = ln(S) + ln(G) + A(tau225 - B)*airmass - ln(f)
20130910
哈佛的分子跃迁数据库
http://www.cfa.harvard.edu/HITRAN/
20130906
IRAM网页上说估算时间要使用CLASS
ASTRO> @ 30m-time-estimator
使用这个命令后得到的输出是说现在有网页版的时间计算器了
https://mrt-lx3.iram.es/nte/time_estimator.psp
20130901
ALMA观测申请提交
http://almascience.eso.org/call-for-proposals/observing-tool/overview
谱线频率查询
http://physics.nist.gov/cgi-bin/micro/table5/start.pl
20130831
80 GHz~370 GHz/3~0.8 mm
IRAM 30米技术参数
http://www.iram-institute.org/EN/content-page.php?ContentID=55&rub=7&srub=55&ssrub=0&sssrub=0&ssssrub=0
谱线频率
CO 2-1 230.538001 GHz
CO 3-2 345.795990 GHz
CS 3-2 146.969049 GHz
Effelsberg观测申请提交(最近观测时间申请截止日期20131009)
https://northstar.mpifr-bonn.mpg.de/useradministration/user/forward.do?forward=https://northstar.mpifr-bonn.mpg.de:443/proposal/setUpProposalList.do
Effelsberg适合观测氨的接收机
1.3cm 18 - 26 GHz
谱线频率
NH$_{3}$ (1,1)-(1,1) 23.694506 GHz
NH$_{3}$ (2,2)-(2,2) 23.722634 GHz
NH$_{3}$ (3,3)-(3,3) 23.870130 GHz
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