2486:
1262:
921:
965:
608:
1257:{\displaystyle {\begin{aligned}M_{\mathrm {e} ,\nu }&=\varepsilon M_{\mathrm {e} ,\nu }^{\circ }={\frac {2\pi h\varepsilon \nu ^{3}}{c^{2}}}{\frac {1}{e^{\frac {h\nu }{kT}}-1}},\\M_{\mathrm {e} ,\lambda }&=\varepsilon M_{\mathrm {e} ,\lambda }^{\circ }={\frac {2\pi h\varepsilon c^{2}}{\lambda ^{5}}}{\frac {1}{e^{\frac {hc}{\lambda kT}}-1}}.\end{aligned}}}
916:{\displaystyle {\begin{aligned}M_{\mathrm {e} ,\nu }^{\circ }&=\pi L_{\mathrm {e} ,\Omega ,\nu }^{\circ }={\frac {2\pi h\nu ^{3}}{c^{2}}}{\frac {1}{e^{\frac {h\nu }{kT}}-1}},\\M_{\mathrm {e} ,\lambda }^{\circ }&=\pi L_{\mathrm {e} ,\Omega ,\lambda }^{\circ }={\frac {2\pi hc^{2}}{\lambda ^{5}}}{\frac {1}{e^{\frac {hc}{\lambda kT}}-1}},\end{aligned}}}
581:
384:
487:
193:
970:
613:
298:
2150:
per unit frequency or wavelength. The latter is commonly measured in W⋅m⋅nm. "Spectral emittance" is an old term for this quantity. This is sometimes also confusingly called "spectral intensity".
516:
315:
134:
2108:
per unit area. This is the emitted component of radiosity. "Radiant emittance" is an old term for this quantity. This is sometimes also confusingly called "intensity".
422:
75:(W·m·Hz) and that of spectral exitance in wavelength is the watt per square metre per metre (W·m)—commonly the watt per square metre per nanometre (
94:. Radiant exitance is often called "intensity" in branches of physics other than radiometry, but in radiometry this usage leads to confusion with
1884:
per unit frequency or wavelength. This is sometimes also confusingly called "spectral intensity". Non-SI units of spectral flux density include
2532:
80:
2031:
per unit frequency or wavelength. The latter is commonly measured in W⋅m⋅nm. This is sometimes also confusingly called "spectral intensity".
1295:
250:
1455:
Radiant energy emitted, reflected, transmitted or received, per unit time. This is sometimes also called "radiant power", and called
2269:
per unit frequency or wavelength. The latter is commonly measured in J⋅m⋅nm. This is sometimes also called "spectral fluence".
1288:
305:
60:
52:
2559:
1281:
1628:
Radiant intensity per unit frequency or wavelength. The latter is commonly measured in W⋅sr⋅nm. This is a
2499:
56:
244:
595:
576:{\displaystyle M_{\mathrm {e} ,\lambda }={\frac {\partial M_{\mathrm {e} }}{\partial \lambda }},}
379:{\displaystyle M_{\mathrm {e} }=\varepsilon M_{\mathrm {e} }^{\circ }=\varepsilon \sigma T^{4},}
2341:
1994:
1951:
1379:
1847:
2348:
should be denoted with suffix "e" (for "energetic") to avoid confusion with photometric or
962:
is the temperature of that surface. For a real surface, the spectral exitance is equal to:
1753:
per unit frequency or wavelength. The latter is commonly measured in W⋅sr⋅m⋅nm. This is a
1582:
Radiant flux emitted, reflected, transmitted or received, per unit solid angle. This is a
312:
is the temperature of that surface. For a real surface, the radiant exitance is equal to:
8:
2564:
2322:
482:{\displaystyle M_{\mathrm {e} ,\nu }={\frac {\partial M_{\mathrm {e} }}{\partial \nu }},}
128:
1505:
Radiant flux per unit frequency or wavelength. The latter is commonly measured in W⋅nm.
947:
200:
55:
is taken as a function of frequency or of wavelength. This is the emitted component of
2227:
integrated over time of irradiation. This is sometimes also called "radiant fluence".
2345:
1714:
1591:
1542:
188:{\displaystyle M_{\mathrm {e} }={\frac {\partial \Phi _{\mathrm {e} }}{\partial A}},}
95:
2232:
2189:
1897:
931:
599:
71:), while that of spectral exitance in frequency is the watt per square metre per
1336:
955:
2485:
2553:
2430:, not to be confused with a letter "v", indicating a photometric quantity.)
1800:
1464:
1418:
222:
211:
32:
2524:
1757:
quantity. This is sometimes also confusingly called "spectral intensity".
2427:
2453:
2317:
1843:
1796:
1456:
591:
391:
240:
233:
48:
20:
1989:
per unit area. This is sometimes also confusingly called "intensity".
1838:
per unit area. This is sometimes also confusingly called "intensity".
2417:
2366:
2364:
2362:
2360:
2358:
1564:
1558:
91:
44:
1671:
2355:
1709:
quantity. This is sometimes also confusingly called "intensity".
2349:
1885:
2525:"Thermal insulation — Heat transfer by radiation — Vocabulary"
1701:
Radiant flux emitted, reflected, transmitted or received by a
1487:
1481:
1356:
1351:
72:
1436:
1431:
64:
2475:
2458:
2422:
1705:, per unit solid angle per unit projected area. This is a
594:
around a given frequency or wavelength, according to the
83:
2312:
293:{\displaystyle M_{\mathrm {e} }^{\circ }=\sigma T^{4},}
968:
611:
519:
425:
318:
253:
137:
2489:
Comparison of photometric and radiometric quantities
2448:
2446:
2444:
2442:
2440:
2438:
2436:
2470:
2468:
1256:
915:
575:
481:
378:
292:
187:
2433:
2551:
2474:Directional quantities are denoted with suffix "
2465:
2412:
2410:
2408:
2406:
2404:
2402:
2400:
2519:
2517:
2515:
2223:per unit area, or equivalently irradiance of a
1775:watt per steradian per square metre, per metre
2533:International Organization for Standardization
1734:watt per steradian per square metre per hertz
127:("e" for "energetic", to avoid confusion with
43:is the radiant exitance of a surface per unit
2397:
1289:
2512:
2335:
35:emitted by a surface per unit area, whereas
101:
1985:(emitted, reflected and transmitted by) a
1296:
1282:
228:If we want to talk about the radiant flux
2484:
2552:
1266:
2231:
2112:
1993:
1842:
1713:
1590:
1463:
1374:Energy of electromagnetic radiation.
1316:
1313:
1310:
1307:
2370:Alternative symbols sometimes seen:
1686:watt per steradian per square metre
397:
2452:Spectral quantities given per unit
2416:Spectral quantities given per unit
106:
13:
2287:joule per square metre, per metre
1146:
1118:
1007:
979:
809:
802:
769:
662:
655:
622:
561:
553:
544:
526:
467:
459:
450:
432:
343:
325:
260:
173:
165:
160:
156:
144:
86:per square centimeter per second (
14:
2576:
2250:joule per square metre per hertz
2168:watt per square metre, per metre
2049:watt per square metre, per metre
1930:watt per square metre, per metre
2131:watt per square metre per hertz
2012:watt per square metre per hertz
1865:watt per square metre per hertz
1413:Radiant energy per unit volume.
500:Spectral exitance in wavelength
403:Spectral exitance in frequency
1:
2505:
2219:Radiant energy received by a
1650:watt per steradian per metre
1609:watt per steradian per hertz
7:
2493:
2344:recommend that radiometric
590:The spectral exitance of a
131:quantities), is defined as
63:of radiant exitance is the
51:, depending on whether the
10:
2583:
239:The radiant exitance of a
232:by a surface, we speak of
16:Radiant flux per unit area
2456:are denoted with suffix "
2420:are denoted with suffix "
2307:
2264:
2188:
2145:
2069:
2026:
1950:
1879:
1795:
1748:
1670:
1627:
1541:
1504:
1417:
1378:
1335:
1330:
1327:
1324:
1321:
306:Stefan–Boltzmann constant
102:Mathematical definitions
2342:Standards organizations
2204:joule per square metre
2490:
2265:Radiant exposure of a
2146:Radiant exitance of a
2085:watt per square metre
1966:watt per square metre
1815:watt per square metre
1394:joule per cubic metre
1380:Radiant energy density
1258:
917:
577:
483:
380:
294:
189:
2488:
2394:for radiant exitance.
1848:Spectral flux density
1259:
918:
578:
484:
381:
295:
190:
2378:for radiant energy,
966:
609:
596:Lambert's cosine law
517:
423:
316:
251:
245:Stefan–Boltzmann law
135:
2560:Physical quantities
1844:Spectral irradiance
1718:Specific intensity
1304:
1276:SI radiometry units
1267:SI radiometry units
1162:
1023:
942:is the wavelength,
824:
785:
677:
638:
587:is the wavelength.
353:
270:
243:, according to the
90:) is often used in
2491:
2386:for radiant flux,
1995:Spectral radiosity
1592:Spectral intensity
1273:
1254:
1252:
1140:
1001:
948:Boltzmann constant
938:is the frequency,
913:
911:
796:
763:
649:
616:
573:
496:is the frequency.
479:
376:
337:
290:
254:
201:partial derivative
185:
67:per square metre (
41:spectral emittance
2331:
2330:
2233:Spectral exposure
2114:Spectral exitance
1715:Spectral radiance
1543:Radiant intensity
1245:
1235:
1202:
1103:
1093:
1063:
904:
894:
861:
754:
744:
714:
568:
474:
398:Spectral exitance
394:of that surface.
180:
96:radiant intensity
37:spectral exitance
29:radiant emittance
2572:
2544:
2543:
2541:
2540:
2521:
2479:
2472:
2463:
2450:
2431:
2426:" (Greek letter
2414:
2395:
2393:
2390:for irradiance,
2389:
2385:
2381:
2377:
2373:
2368:
2353:
2339:
2284:
2247:
2201:
2190:Radiant exposure
2165:
2128:
2082:
2071:Radiant exitance
2046:
2009:
1963:
1927:
1911:
1907:
1903:
1895:
1891:
1880:Irradiance of a
1862:
1812:
1772:
1731:
1683:
1647:
1606:
1554:
1518:
1477:
1428:
1391:
1348:
1305:
1298:
1291:
1284:
1277:
1272:
1263:
1261:
1260:
1255:
1253:
1246:
1244:
1237:
1236:
1234:
1223:
1215:
1205:
1203:
1201:
1200:
1191:
1190:
1189:
1167:
1161:
1156:
1149:
1129:
1128:
1121:
1104:
1102:
1095:
1094:
1092:
1084:
1076:
1066:
1064:
1062:
1061:
1052:
1051:
1050:
1028:
1022:
1017:
1010:
990:
989:
982:
961:
953:
945:
941:
937:
929:
922:
920:
919:
914:
912:
905:
903:
896:
895:
893:
882:
874:
864:
862:
860:
859:
850:
849:
848:
829:
823:
818:
805:
784:
779:
772:
755:
753:
746:
745:
743:
735:
727:
717:
715:
713:
712:
703:
702:
701:
682:
676:
671:
658:
637:
632:
625:
586:
582:
580:
579:
574:
569:
567:
559:
558:
557:
556:
542:
537:
536:
529:
513:, is defined as
495:
488:
486:
485:
480:
475:
473:
465:
464:
463:
462:
448:
443:
442:
435:
416:, is defined as
389:
385:
383:
382:
377:
372:
371:
352:
347:
346:
330:
329:
328:
311:
303:
299:
297:
296:
291:
286:
285:
269:
264:
263:
220:
209:
198:
194:
192:
191:
186:
181:
179:
171:
170:
169:
168:
154:
149:
148:
147:
126:
112:Radiant exitance
107:Radiant exitance
89:
78:
70:
25:radiant exitance
2582:
2581:
2575:
2574:
2573:
2571:
2570:
2569:
2550:
2549:
2548:
2547:
2538:
2536:
2523:
2522:
2513:
2508:
2496:
2483:
2482:
2473:
2466:
2451:
2434:
2415:
2398:
2391:
2387:
2383:
2379:
2375:
2371:
2369:
2356:
2340:
2336:
2327:
2283:
2274:
2246:
2237:
2200:
2194:
2164:
2155:
2127:
2118:
2081:
2075:
2045:
2036:
2027:Radiosity of a
2008:
1999:
1962:
1956:
1926:
1917:
1909:
1905:
1901:
1898:solar flux unit
1893:
1889:
1861:
1852:
1846:
1811:
1805:
1799:
1771:
1762:
1730:
1721:
1717:
1682:
1676:
1646:
1637:
1605:
1596:
1553:
1547:
1521:watt per metre
1517:
1510:
1476:
1469:
1427:
1423:
1390:
1384:
1347:
1341:
1303:
1302:
1275:
1269:
1251:
1250:
1224:
1216:
1214:
1210:
1209:
1204:
1196:
1192:
1185:
1181:
1168:
1166:
1157:
1145:
1144:
1130:
1117:
1116:
1112:
1109:
1108:
1085:
1077:
1075:
1071:
1070:
1065:
1057:
1053:
1046:
1042:
1029:
1027:
1018:
1006:
1005:
991:
978:
977:
973:
969:
967:
964:
963:
959:
958:in the medium,
951:
943:
939:
935:
932:Planck constant
927:
910:
909:
883:
875:
873:
869:
868:
863:
855:
851:
844:
840:
830:
828:
819:
801:
800:
786:
780:
768:
767:
760:
759:
736:
728:
726:
722:
721:
716:
708:
704:
697:
693:
683:
681:
672:
654:
653:
639:
633:
621:
620:
612:
610:
607:
606:
602:, is equal to:
584:
560:
552:
551:
547:
543:
541:
525:
524:
520:
518:
515:
514:
512:
493:
466:
458:
457:
453:
449:
447:
431:
430:
426:
424:
421:
420:
415:
400:
387:
367:
363:
348:
342:
341:
324:
323:
319:
317:
314:
313:
309:
301:
281:
277:
265:
259:
258:
252:
249:
248:
247:, is equal to:
218:
208:
204:
196:
172:
164:
163:
159:
155:
153:
143:
142:
138:
136:
133:
132:
125:
119:
109:
104:
87:
76:
68:
17:
12:
11:
5:
2580:
2579:
2568:
2567:
2562:
2546:
2545:
2510:
2509:
2507:
2504:
2503:
2502:
2495:
2492:
2481:
2480:
2464:
2432:
2396:
2354:
2333:
2332:
2329:
2328:
2326:
2325:
2320:
2315:
2309:
2305:
2304:
2291:
2288:
2285:
2278:
2271:
2270:
2263:
2254:
2251:
2248:
2241:
2235:
2229:
2228:
2217:
2208:
2205:
2202:
2198:
2192:
2186:
2185:
2172:
2169:
2166:
2159:
2152:
2151:
2144:
2135:
2132:
2129:
2122:
2116:
2110:
2109:
2098:
2089:
2086:
2083:
2079:
2073:
2067:
2066:
2053:
2050:
2047:
2040:
2033:
2032:
2025:
2016:
2013:
2010:
2003:
1997:
1991:
1990:
1979:
1970:
1967:
1964:
1960:
1954:
1948:
1947:
1934:
1931:
1928:
1921:
1914:
1913:
1906:10 W⋅m⋅Hz
1894:10 W⋅m⋅Hz
1878:
1869:
1866:
1863:
1856:
1850:
1840:
1839:
1828:
1819:
1816:
1813:
1809:
1803:
1793:
1792:
1779:
1776:
1773:
1766:
1759:
1758:
1749:Radiance of a
1747:
1738:
1735:
1732:
1725:
1719:
1711:
1710:
1699:
1690:
1687:
1684:
1680:
1674:
1668:
1667:
1654:
1651:
1648:
1641:
1634:
1633:
1626:
1613:
1610:
1607:
1600:
1594:
1588:
1587:
1580:
1567:
1561:
1555:
1551:
1545:
1539:
1538:
1525:
1522:
1519:
1512:
1507:
1506:
1503:
1490:
1484:
1478:
1471:
1467:
1461:
1460:
1459:in Astronomy.
1453:
1440:
1434:
1429:
1425:
1421:
1415:
1414:
1411:
1398:
1395:
1392:
1388:
1382:
1376:
1375:
1372:
1359:
1354:
1349:
1345:
1339:
1337:Radiant energy
1333:
1332:
1329:
1326:
1323:
1319:
1318:
1315:
1312:
1309:
1301:
1300:
1293:
1286:
1278:
1274:
1268:
1265:
1249:
1243:
1240:
1233:
1230:
1227:
1222:
1219:
1213:
1208:
1199:
1195:
1188:
1184:
1180:
1177:
1174:
1171:
1165:
1160:
1155:
1152:
1148:
1143:
1139:
1136:
1133:
1131:
1127:
1124:
1120:
1115:
1111:
1110:
1107:
1101:
1098:
1091:
1088:
1083:
1080:
1074:
1069:
1060:
1056:
1049:
1045:
1041:
1038:
1035:
1032:
1026:
1021:
1016:
1013:
1009:
1004:
1000:
997:
994:
992:
988:
985:
981:
976:
972:
971:
956:speed of light
924:
923:
908:
902:
899:
892:
889:
886:
881:
878:
872:
867:
858:
854:
847:
843:
839:
836:
833:
827:
822:
817:
814:
811:
808:
804:
799:
795:
792:
789:
787:
783:
778:
775:
771:
766:
762:
761:
758:
752:
749:
742:
739:
734:
731:
725:
720:
711:
707:
700:
696:
692:
689:
686:
680:
675:
670:
667:
664:
661:
657:
652:
648:
645:
642:
640:
636:
631:
628:
624:
619:
615:
614:
572:
566:
563:
555:
550:
546:
540:
535:
532:
528:
523:
510:
490:
489:
478:
472:
469:
461:
456:
452:
446:
441:
438:
434:
429:
413:
399:
396:
375:
370:
366:
362:
359:
356:
351:
345:
340:
336:
333:
327:
322:
289:
284:
280:
276:
273:
268:
262:
257:
206:
184:
178:
175:
167:
162:
158:
152:
146:
141:
123:
108:
105:
103:
100:
15:
9:
6:
4:
3:
2:
2578:
2577:
2566:
2563:
2561:
2558:
2557:
2555:
2534:
2530:
2529:ISO_9288:2022
2526:
2520:
2518:
2516:
2511:
2501:
2498:
2497:
2487:
2477:
2471:
2469:
2461:
2460:
2455:
2449:
2447:
2445:
2443:
2441:
2439:
2437:
2429:
2425:
2424:
2419:
2413:
2411:
2409:
2407:
2405:
2403:
2401:
2367:
2365:
2363:
2361:
2359:
2351:
2347:
2343:
2338:
2334:
2324:
2321:
2319:
2316:
2314:
2311:
2310:
2306:
2303:
2299:
2295:
2292:
2289:
2286:
2282:
2277:
2273:
2272:
2268:
2262:
2258:
2255:
2252:
2249:
2245:
2240:
2236:
2234:
2230:
2226:
2222:
2218:
2216:
2212:
2209:
2206:
2203:
2197:
2193:
2191:
2187:
2184:
2180:
2176:
2173:
2170:
2167:
2163:
2158:
2154:
2153:
2149:
2143:
2139:
2136:
2133:
2130:
2126:
2121:
2117:
2115:
2111:
2107:
2103:
2100:Radiant flux
2099:
2097:
2093:
2090:
2087:
2084:
2078:
2074:
2072:
2068:
2065:
2061:
2057:
2054:
2051:
2048:
2044:
2039:
2035:
2034:
2030:
2024:
2020:
2017:
2014:
2011:
2007:
2002:
1998:
1996:
1992:
1988:
1984:
1981:Radiant flux
1980:
1978:
1974:
1971:
1968:
1965:
1959:
1955:
1953:
1949:
1946:
1942:
1938:
1935:
1932:
1929:
1925:
1920:
1916:
1915:
1899:
1887:
1883:
1877:
1873:
1870:
1867:
1864:
1860:
1855:
1851:
1849:
1845:
1841:
1837:
1833:
1830:Radiant flux
1829:
1827:
1823:
1820:
1817:
1814:
1808:
1804:
1802:
1798:
1794:
1791:
1787:
1783:
1780:
1777:
1774:
1770:
1765:
1761:
1760:
1756:
1752:
1746:
1742:
1739:
1736:
1733:
1729:
1724:
1720:
1716:
1712:
1708:
1704:
1700:
1698:
1694:
1691:
1688:
1685:
1679:
1675:
1673:
1669:
1666:
1662:
1658:
1655:
1652:
1649:
1645:
1640:
1636:
1635:
1631:
1625:
1621:
1617:
1614:
1611:
1608:
1604:
1599:
1595:
1593:
1589:
1585:
1581:
1579:
1575:
1571:
1568:
1566:
1562:
1560:
1556:
1550:
1546:
1544:
1540:
1537:
1533:
1529:
1526:
1523:
1520:
1516:
1509:
1508:
1502:
1498:
1494:
1491:
1489:
1485:
1483:
1479:
1475:
1468:
1466:
1465:Spectral flux
1462:
1458:
1454:
1452:
1448:
1444:
1441:
1438:
1435:
1433:
1430:
1422:
1420:
1416:
1412:
1410:
1406:
1402:
1399:
1396:
1393:
1387:
1383:
1381:
1377:
1373:
1371:
1367:
1363:
1360:
1358:
1355:
1353:
1350:
1344:
1340:
1338:
1334:
1320:
1306:
1299:
1294:
1292:
1287:
1285:
1280:
1279:
1271:
1264:
1247:
1241:
1238:
1231:
1228:
1225:
1220:
1217:
1211:
1206:
1197:
1193:
1186:
1182:
1178:
1175:
1172:
1169:
1163:
1158:
1153:
1150:
1141:
1137:
1134:
1132:
1125:
1122:
1113:
1105:
1099:
1096:
1089:
1086:
1081:
1078:
1072:
1067:
1058:
1054:
1047:
1043:
1039:
1036:
1033:
1030:
1024:
1019:
1014:
1011:
1002:
998:
995:
993:
986:
983:
974:
957:
949:
933:
906:
900:
897:
890:
887:
884:
879:
876:
870:
865:
856:
852:
845:
841:
837:
834:
831:
825:
820:
815:
812:
806:
797:
793:
790:
788:
781:
776:
773:
764:
756:
750:
747:
740:
737:
732:
729:
723:
718:
709:
705:
698:
694:
690:
687:
684:
678:
673:
668:
665:
659:
650:
646:
643:
641:
634:
629:
626:
617:
605:
604:
603:
601:
597:
593:
592:black surface
588:
570:
564:
548:
538:
533:
530:
521:
509:
505:
501:
497:
476:
470:
454:
444:
439:
436:
427:
419:
418:
417:
412:
408:
404:
395:
393:
373:
368:
364:
360:
357:
354:
349:
338:
334:
331:
320:
307:
287:
282:
278:
274:
271:
266:
255:
246:
242:
241:black surface
237:
235:
231:
226:
224:
216:
213:
202:
182:
176:
150:
139:
130:
122:
117:
113:
99:
97:
93:
85:
82:
74:
66:
62:
58:
54:
50:
46:
42:
38:
34:
30:
26:
22:
2537:. Retrieved
2528:
2457:
2421:
2337:
2301:
2297:
2293:
2280:
2275:
2266:
2260:
2256:
2243:
2238:
2224:
2220:
2214:
2210:
2195:
2182:
2178:
2174:
2161:
2156:
2147:
2141:
2137:
2124:
2119:
2113:
2105:
2101:
2095:
2091:
2076:
2070:
2063:
2059:
2055:
2042:
2037:
2028:
2022:
2018:
2005:
2000:
1986:
1982:
1976:
1972:
1957:
1944:
1940:
1936:
1923:
1918:
1881:
1875:
1871:
1858:
1853:
1835:
1831:
1825:
1821:
1806:
1801:Flux density
1789:
1785:
1781:
1768:
1763:
1754:
1750:
1744:
1740:
1727:
1722:
1706:
1702:
1696:
1692:
1677:
1664:
1660:
1656:
1643:
1638:
1629:
1623:
1619:
1615:
1602:
1597:
1583:
1577:
1573:
1569:
1548:
1535:
1531:
1527:
1514:
1500:
1496:
1492:
1473:
1450:
1446:
1442:
1419:Radiant flux
1408:
1404:
1400:
1385:
1369:
1365:
1361:
1342:
1270:
925:
600:Planck's law
589:
507:
503:
499:
498:
491:
410:
406:
402:
401:
238:
229:
227:
223:surface area
214:
212:radiant flux
120:
115:
111:
110:
40:
36:
33:radiant flux
28:
24:
18:
2352:quantities.
1755:directional
1707:directional
1630:directional
1584:directional
129:photometric
2565:Radiometry
2554:Categories
2539:2023-06-17
2506:References
2454:wavelength
2346:quantities
2323:Photometry
2318:Radiometry
2308:See also:
1910:10 Jy
1902:1 sfu
1797:Irradiance
1737:W⋅sr⋅m⋅Hz
1632:quantity.
1586:quantity.
1457:luminosity
1314:Dimension
506:, denoted
409:, denoted
392:emissivity
234:irradiance
118:, denoted
49:wavelength
21:radiometry
2500:Radiosity
2418:frequency
1952:Radiosity
1890:1 Jy
1559:steradian
1557:watt per
1480:watt per
1308:Quantity
1239:−
1226:λ
1194:λ
1179:ε
1173:π
1159:∘
1154:λ
1138:ε
1126:λ
1097:−
1082:ν
1044:ν
1040:ε
1034:π
1020:∘
1015:ν
999:ε
987:ν
898:−
885:λ
853:λ
835:π
821:∘
816:λ
810:Ω
794:π
782:∘
777:λ
748:−
733:ν
695:ν
688:π
674:∘
669:ν
663:Ω
647:π
635:∘
630:ν
565:λ
562:∂
545:∂
534:λ
471:ν
468:∂
451:∂
440:ν
361:σ
358:ε
350:∘
335:ε
275:σ
267:∘
174:∂
161:Φ
157:∂
92:astronomy
57:radiosity
45:frequency
2494:See also
1832:received
1672:Radiance
1612:W⋅sr⋅Hz
598:and the
230:received
203:symbol,
88:erg·cm·s
81:CGS unit
53:spectrum
2267:surface
2253:J⋅m⋅Hz
2225:surface
2221:surface
2148:surface
2134:W⋅m⋅Hz
2106:surface
2102:emitted
2029:surface
2015:W⋅m⋅Hz
1987:surface
1983:leaving
1882:surface
1868:W⋅m⋅Hz
1836:surface
1778:W⋅sr⋅m
1751:surface
1703:surface
1689:W⋅sr⋅m
1653:W⋅sr⋅m
1331:Symbol
1325:Symbol
954:is the
946:is the
930:is the
504:surface
407:surface
390:is the
304:is the
221:is the
215:emitted
210:is the
199:is the
116:surface
79:). The
61:SI unit
31:is the
2535:. 2022
2350:photon
1896:) and
1886:jansky
1439:= J/s
1317:Notes
926:where
583:where
492:where
388:ε
386:where
308:, and
300:where
217:, and
195:where
77:W·m·nm
59:. The
2104:by a
1834:by a
1482:hertz
1352:joule
1328:Name
1322:Name
1311:Unit
502:of a
405:of a
114:of a
73:hertz
2290:J/m
2207:J/m
2171:W/m
2088:W/m
2052:W/m
1969:W/m
1933:W/m
1818:W/m
1767:e,Ω,
1726:e,Ω,
1642:e,Ω,
1601:e,Ω,
1524:W/m
1432:watt
1397:J/m
65:watt
2382:or
2374:or
1912:).
1681:e,Ω
1552:e,Ω
511:e,λ
414:e,ν
84:erg
69:W/m
47:or
39:or
27:or
19:In
2556::
2531:.
2527:.
2514:^
2478:".
2467:^
2462:".
2435:^
2428:nu
2399:^
2357:^
2313:SI
2279:e,
2242:e,
2160:e,
2123:e,
2041:e,
2004:e,
1922:e,
1908:=
1904:=
1892:=
1857:e,
1565:sr
1563:W/
1513:e,
1488:Hz
1486:W/
1472:e,
950:,
934:,
236:.
225:.
98:.
23:,
2542:.
2476:Ω
2459:λ
2423:ν
2392:W
2388:I
2384:F
2380:P
2376:E
2372:W
2302:T
2300:⋅
2298:L
2296:⋅
2294:M
2281:λ
2276:H
2261:T
2259:⋅
2257:M
2244:ν
2239:H
2215:T
2213:⋅
2211:M
2199:e
2196:H
2183:T
2181:⋅
2179:L
2177:⋅
2175:M
2162:λ
2157:M
2142:T
2140:⋅
2138:M
2125:ν
2120:M
2096:T
2094:⋅
2092:M
2080:e
2077:M
2064:T
2062:⋅
2060:L
2058:⋅
2056:M
2043:λ
2038:J
2023:T
2021:⋅
2019:M
2006:ν
2001:J
1977:T
1975:⋅
1973:M
1961:e
1958:J
1945:T
1943:⋅
1941:L
1939:⋅
1937:M
1924:λ
1919:E
1900:(
1888:(
1876:T
1874:⋅
1872:M
1859:ν
1854:E
1826:T
1824:⋅
1822:M
1810:e
1807:E
1790:T
1788:⋅
1786:L
1784:⋅
1782:M
1769:λ
1764:L
1745:T
1743:⋅
1741:M
1728:ν
1723:L
1697:T
1695:⋅
1693:M
1678:L
1665:T
1663:⋅
1661:L
1659:⋅
1657:M
1644:λ
1639:I
1624:T
1622:⋅
1620:L
1618:⋅
1616:M
1603:ν
1598:I
1578:T
1576:⋅
1574:L
1572:⋅
1570:M
1549:I
1536:T
1534:⋅
1532:L
1530:⋅
1528:M
1515:λ
1511:Φ
1501:T
1499:⋅
1497:L
1495:⋅
1493:M
1474:ν
1470:Φ
1451:T
1449:⋅
1447:L
1445:⋅
1443:M
1437:W
1426:e
1424:Φ
1409:T
1407:⋅
1405:L
1403:⋅
1401:M
1389:e
1386:w
1370:T
1368:⋅
1366:L
1364:⋅
1362:M
1357:J
1346:e
1343:Q
1297:e
1290:t
1283:v
1248:.
1242:1
1232:T
1229:k
1221:c
1218:h
1212:e
1207:1
1198:5
1187:2
1183:c
1176:h
1170:2
1164:=
1151:,
1147:e
1142:M
1135:=
1123:,
1119:e
1114:M
1106:,
1100:1
1090:T
1087:k
1079:h
1073:e
1068:1
1059:2
1055:c
1048:3
1037:h
1031:2
1025:=
1012:,
1008:e
1003:M
996:=
984:,
980:e
975:M
960:T
952:c
944:k
940:λ
936:ν
928:h
907:,
901:1
891:T
888:k
880:c
877:h
871:e
866:1
857:5
846:2
842:c
838:h
832:2
826:=
813:,
807:,
803:e
798:L
791:=
774:,
770:e
765:M
757:,
751:1
741:T
738:k
730:h
724:e
719:1
710:2
706:c
699:3
691:h
685:2
679:=
666:,
660:,
656:e
651:L
644:=
627:,
623:e
618:M
585:λ
571:,
554:e
549:M
539:=
531:,
527:e
522:M
508:M
494:ν
477:,
460:e
455:M
445:=
437:,
433:e
428:M
411:M
374:,
369:4
365:T
355:=
344:e
339:M
332:=
326:e
321:M
310:T
302:σ
288:,
283:4
279:T
272:=
261:e
256:M
219:A
207:e
205:Φ
197:∂
183:,
177:A
166:e
151:=
145:e
140:M
124:e
121:M
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.