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← Revision 19 as of 2013-11-22 10:18:59 ⇥
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=== NRAO === [[https://science.nrao.edu/science/service-observing|Analysis of public VLA observations]] === SWIFT === [[http://swift-sgra.com/ | Analysis of Swift data]] |
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| ||<rowstyle="background-color: #E0E0FF;"> Parameter || [[http://adsabs.harvard.edu/abs/2012Natur.481...51G|Gillessen et al. 2012a]] || [[http://adsabs.harvard.edu/abs/2012arXiv1209.2272G|Gillessen et al. 2012b]] || ||semi major axis (mas)|| 521 ± 28 ||666 ± 39|| ||eccentricity|| 0.9384 ± 0.0066 ||0.9664 ± 0.0026|| ||inclination [°]|| 106.55 ± 0.88|| 109.48 ± 0.81|| ||position angle of ascending node [°]|| 101.5 ± 1.1|| 95.8 ± 1.1|| ||longitude of periastron [°]|| 109.59 ± 0.78|| 108.50 ± 0.74|| ||epoch of periastron [yr]|| 2013.51 ± 0.04|| 2013.69 ± 0.04|| ||orbital period [yr]|| 137 ± 11 ||198 ± 18|| |
||<rowstyle="background-color: #E0E0FF;"> Parameter || [[http://adsabs.harvard.edu/abs/2012Natur.481...51G|Gillessen et al. 2012a]] || [[http://adsabs.harvard.edu/abs/2013ApJ...763...78G|Gillessen et al. 2013a]] || [[ http://adsabs.harvard.edu/abs/2013arXiv1304.5280P | Phifer et al. 2013]] || [[http://adsabs.harvard.edu/abs/2013ApJ...774...44G | Gillessen at al. 2013b]] || ||semi major axis (mas)|| 521 ± 28 ||666 ± 39|| 880 || 1048 ± 247|| ||eccentricity|| 0.9384 ± 0.0066 ||0.9664 ± 0.0026|| 0.9814 ± 0.0060 || 0.9762 ± 0.0074 || ||inclination [°]|| 106.55 ± 0.88|| 109.48 ± 0.81|| 121 ± 3 || 118.1 ± 2.0 || ||position angle of ascending node [°]|| 101.5 ± 1.1|| 95.8 ± 1.1|| 56 ± 11 || 81.9 ± 4.3 || ||longitude of periastron [°]|| 109.59 ± 0.78|| 108.50 ± 0.74|| 88 ± 6|| 97.2 ± 2.2 || ||epoch of periastron [yr]|| 2013.51 ± 0.04|| 2013.69 ± 0.04|| 2014.21 ± 0.14 || 2014.25 ± 0.06 || ||orbital period [yr]|| 137 ± 11 ||198 ± 18|| 276 ± 111 || 391 ± 66 || |
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| ||<rowstyle="background-color: #E0E0FF;"> Epoch || R.A. || Dec || error estimate || | ==== VLT/NACO-based L-band positions ==== ||<rowstyle="background-color: #E0E0FF;"> Epoch [Julian year] || R.A. ["] || Dec ["] || error estimate ["] || |
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| ==== VLT/SINFONI-based Br-gamma positions ==== | |
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| ; velocity data date v delta v 2003.2711 990. 50. 2004.5356 1052. 30. 2005.2153 1010. 50. 2008.2624 1256. 20. 2009.3851 1404. 30. 2010.3539 1522. 25. 2011.3169 1692. 60. 2011.5665 1640. 60. 2012.2126 1934. 50. 2012.3612 1930. 50. 2012.4942 2030. 50. |
||<rowstyle="background-color: #E0E0FF;"> Epoch [Julian year] || R.A. ["] || error R.A. ["] || Dec ["] || error Dec ["] || ||2004.5356 ||0.264754 ||0.00247242 ||-0.145519 ||0.00264724 || ||2005.2153 ||0.233448 ||0.00478122 ||-0.135809 ||0.00337244 || ||2006.2040 ||0.243039 ||0.00489195 ||-0.123933 ||0.00441347 || ||2008.2624 ||0.204608 ||0.00349524 ||-0.0849295 ||0.00335883 || ||2009.3851 ||0.212171 ||0.00338314 ||-0.0812734 ||0.00265295 || ||2010.3539 ||0.160914 ||0.00352225 ||-0.0510249 ||0.00361687 || ||2011.3169 ||0.146314 ||0.00268501 ||-0.0381918 ||0.00266301 || ||2011.5665 ||0.147089 ||0.00779815 ||-0.0275061 ||0.00633855 || ||2012.2126 ||0.132222 ||0.00289233 ||-0.0201099 ||0.003077 || ||2012.4942 ||0.122072 ||0.00158594 ||-0.0223565 ||0.00294338 || ||2013.2650 ||0.0846412 ||0.0015125 ||0.00105052 ||0.0016 || ==== VLT/SINFONI-based Br-gamma velocities ==== ||<rowstyle="background-color: #E0E0FF;"> Epoch [Julian year] || vLSR [km/s] || error estimate [km/s] || ||2003.2711|| 990 || 50|| ||2004.5356|| 1052|| 30|| ||2005.2153|| 1010|| 50|| ||2008.2624|| 1256|| 20|| ||2009.3851|| 1404|| 30|| ||2010.3539|| 1522|| 25|| ||2011.3169|| 1692|| 60|| ||2011.5665|| 1640|| 60|| ||2012.2126|| 1934|| 50|| ||2012.3612|| 1930|| 50|| ||2012.4942|| 2030|| 50|| ||2012.7036|| 2046|| 50|| ||2013.2650|| 2180|| 50|| |
Plots and Data
NRAO
Analysis of public VLA observations
SWIFT
Orbital Elements
Parameter |
||||
semi major axis (mas) |
521 ± 28 |
666 ± 39 |
880 |
1048 ± 247 |
eccentricity |
0.9384 ± 0.0066 |
0.9664 ± 0.0026 |
0.9814 ± 0.0060 |
0.9762 ± 0.0074 |
inclination [°] |
106.55 ± 0.88 |
109.48 ± 0.81 |
121 ± 3 |
118.1 ± 2.0 |
position angle of ascending node [°] |
101.5 ± 1.1 |
95.8 ± 1.1 |
56 ± 11 |
81.9 ± 4.3 |
longitude of periastron [°] |
109.59 ± 0.78 |
108.50 ± 0.74 |
88 ± 6 |
97.2 ± 2.2 |
epoch of periastron [yr] |
2013.51 ± 0.04 |
2013.69 ± 0.04 |
2014.21 ± 0.14 |
2014.25 ± 0.06 |
orbital period [yr] |
137 ± 11 |
198 ± 18 |
276 ± 111 |
391 ± 66 |
Astrometry & Radial Velocities
VLT/NACO-based L-band positions
Epoch [Julian year] |
R.A. ["] |
Dec ["] |
error estimate ["] |
2002.6 |
0.2771 |
-0.155712 |
0.002 |
2003.4 |
0.276067 |
-0.140544 |
0.002 |
2004.6 |
0.263562 |
-0.130565 |
0.002 |
2005.4 |
0.264142 |
-0.123733 |
0.002 |
2006.4 |
0.240084 |
-0.109394 |
0.002 |
2007.3 |
0.225361 |
-0.102138 |
0.002 |
2008.5 |
0.209801 |
-0.0879578 |
0.002 |
2009.25 |
0.193148 |
-0.0740471 |
0.002 |
2010.5 |
0.158347 |
-0.0540539 |
0.002 |
2011.3 |
0.139725 |
-0.0393364 |
0.002 |
2011.5 |
0.134431 |
-0.0376276 |
0.002 |
2012.2 |
0.113924 |
-0.0374186 |
0.005 |
2012.2126 |
0.122807 |
-0.0228154 |
0.005 |
2012.4942 |
0.10694 |
-0.0138847 |
0.005 |
VLT/SINFONI-based Br-gamma positions
Epoch [Julian year] |
R.A. ["] |
error R.A. ["] |
Dec ["] |
error Dec ["] |
2004.5356 |
0.264754 |
0.00247242 |
-0.145519 |
0.00264724 |
2005.2153 |
0.233448 |
0.00478122 |
-0.135809 |
0.00337244 |
2006.2040 |
0.243039 |
0.00489195 |
-0.123933 |
0.00441347 |
2008.2624 |
0.204608 |
0.00349524 |
-0.0849295 |
0.00335883 |
2009.3851 |
0.212171 |
0.00338314 |
-0.0812734 |
0.00265295 |
2010.3539 |
0.160914 |
0.00352225 |
-0.0510249 |
0.00361687 |
2011.3169 |
0.146314 |
0.00268501 |
-0.0381918 |
0.00266301 |
2011.5665 |
0.147089 |
0.00779815 |
-0.0275061 |
0.00633855 |
2012.2126 |
0.132222 |
0.00289233 |
-0.0201099 |
0.003077 |
2012.4942 |
0.122072 |
0.00158594 |
-0.0223565 |
0.00294338 |
2013.2650 |
0.0846412 |
0.0015125 |
0.00105052 |
0.0016 |
VLT/SINFONI-based Br-gamma velocities
Epoch [Julian year] |
vLSR [km/s] |
error estimate [km/s] |
2003.2711 |
990 |
50 |
2004.5356 |
1052 |
30 |
2005.2153 |
1010 |
50 |
2008.2624 |
1256 |
20 |
2009.3851 |
1404 |
30 |
2010.3539 |
1522 |
25 |
2011.3169 |
1692 |
60 |
2011.5665 |
1640 |
60 |
2012.2126 |
1934 |
50 |
2012.3612 |
1930 |
50 |
2012.4942 |
2030 |
50 |
2012.7036 |
2046 |
50 |
2013.2650 |
2180 |
50 |